Table of contents

 

Index to observations received from ARPS members

 

Observations received FROM ARPS MEMBERS

 

April 2008

Astrometry

 

David Briggs, J69

 

COD J69

OBS David Briggs

MEA David Briggs

TEL 0.40-m f/4.57 Newtonian reflector + CCD

ACK MPCReport file updated 2008.03.08 00:18:17

AC2 dbriggs@kepler.demon.co.uk

NET USNO-A2.0

K08C01L C2008 03 07.99447 10 15 11.72 -06 40 00.7 15.3 R J69

K08C01L C2008 03 07.99601 10 15 10.39 -06 40 16.5 15.1 R J69

K08C01L C2008 03 07.99753 10 15 09.08 -06 40 31.5 15.0 R J69

K08C01L C2008 03 07.99906 10 15 07.73 -06 40 47.4 15.1 R J69

11398 C2008 03 08.00843 12 28 30.03 +35 58 36.6 14.0 R J69

11398 C2008 03 08.01020 12 28 30.44 +35 58 45.7 14.1 R J69

11398 C2008 03 08.01196 12 28 30.84 +35 58 54.7 14.0 R J69

 

COD J69

OBS David Briggs

MEA David Briggs

TEL 0.40-m f/4.57 Newtonian reflector + CCD

ACK MPCReport file updated 2008.03.09 21:58:36

AC2 dbriggs@kepler.demon.co.uk

NET USNO-A2.0

07267 C2008 03 09.90544 11 39 14.74 +13 18 07.4 14.1 R J69

07267 C2008 03 09.90779 11 39 14.46 +13 18 04.7 14.1 R J69

07267 C2008 03 09.91013 11 39 14.20 +13 18 01.9 14.3 R J69

 

John Fletcher, J93

 

COD J93

OBS John Fletcher

MEA John Fletcher

TEL 0.25-m f/5.5 Schmidt-Cassegrain + CCD

ACK MPCReport file updated 2008.03.07 22:21:49

AC2 jfmto@blueyonder.co.uk

NET USNO-A2.0

0093P C2008 03 07.88796 04 08 16.41 +32 28 28.3 15.6 N J93

0093P C2008 03 07.89854 04 08 18.05 +32 28 27.9 15.7 N J93

0093P C2008 03 07.90488 04 08 19.36 +32 28 27.6 15.6 N J93

0124P C2008 03 07.87103 09 43 56.95 +52 10 30.9 16.3 N J93

0124P C2008 03 07.87315 09 43 56.64 +52 10 26.6 16.4 N J93

0124P C2008 03 07.87949 09 43 55.80 +52 10 13.1 16.4 N J93

 

OBS John Fletcher

MEA John Fletcher

TEL 0.25-m f/5.5 Schmidt-Cassegrain + CCD

ACK MPCReport file updated 2008.04.01 23:36:02

AC2 jfmto@blueyonder.co.uk

NET USNO-A2.0

01036 C2008 04 01.83751 06 41 42.25 -05 12 54.1 15.0 V J93

01036 C2008 04 01.84700 06 41 42.54 -05 12 49.8 15.0 V J93

01036 C2008 04 01.85591 06 41 42.97 -05 12 45.8 14.9 V J93

03288 C2008 04 01.95051 07 33 10.77 +10 20 49.4 16.0 V J93

03288 C2008 04 01.95613 07 33 11.35 +10 20 52.2 16.1 V J93

03288 C2008 04 01.97300 07 33 13.23 +10 20 59.0 16.0 V J93

03800 C2008 04 01.93296 12 54 31.03 +39 16 44.1 15.8 V J93

03800 C2008 04 01.93859 12 54 30.59 +39 16 44.8 15.8 V J93

03800 C2008 04 01.94420 12 54 30.16 +39 16 45.2 15.9 V J93

04954 C2008 04 01.86574 07 42 46.55 +34 13 30.7 15.5 V J93

04954 C2008 04 01.86833 07 42 46.91 +34 13 27.4 15.6 V J93

04954 C2008 04 01.87118 07 42 47.27 +34 13 23.3 15.6 V J93

 

COD J93

OBS John Fletcher

MEA John Fletcher

TEL 0.25-m f/5.5 Schmidt-Cassegrain + CCD

ACK MPCReport file updated 2008.03.27 02:13:26

AC2 jfmto@blueyonder.co.uk

NET USNO-A2.0

04954 C2008 03 27.06384 07 29 20.63 +36 19 24.2 15.5 V J93

04954 C2008 03 27.06527 07 29 20.81 +36 19 21.9 15.5 V J93

04954 C2008 03 27.06669 07 29 21.06 +36 19 20.4 15.5 V J93

D6472 C2008 03 27.07789 12 27 19.40 +29 25 04.8 16.8 V J93

D6472 C2008 03 27.08185 12 27 19.36 +29 25 04.6 16.8 V J93

 

(D6472)

(136472) 2005 FY9 mag 16.9

Right ascension: 12h27m43.952s

Declination: N29 22' 21.22"

Mean position at current epoch:

Right ascension: 12h27m43.952s

Declination: N29 22' 21.22"

Apparent position at current epoch:

Right ascension: 12h27m46.237s

Declination: N29 22' 09.46"

Dist from home planet: 51.19894022 AU (7,659,252,438 km) Cubewano or scattered disk object

Reference: MPO103109

Perihelion distance 38.2217258 AU

Aphelion distance 52.7477606 AU

Period of orbit 306.77 years (112046.2 days)

Date of perihelion JD 2407645.70668 (23 Oct 1879 4:58)

 

David Storey, 987

 

COD 987

CON D. Storey [dave.storey@iomastronomy.org]

OBS D. Storey

MEA D. Storey

TEL 0.4-m Schmidt-Cassegrain + CCD

ACK MPCReport file updated 2008.03.18 21:43:40

AC2 dave.storey@iomastronomy.org

NET USNO-B1.0

01620 C2008 03 17.85869 07 28 28.94 -09 43 44.2 12.4 C 987

01620 C2008 03 17.86205 07 28 27.22 -09 44 01.8 13.4 C 987

01620 C2008 03 17.86494 07 28 25.71 -09 44 17.9 14.1 C 987

01620 C2008 03 17.86799 07 28 24.04 -09 44 33.9 13.6 C 987

01620 C2008 03 17.87537 07 28 20.15 -09 45 14.2 14.0 C 987

01620 C2008 03 17.87795 07 28 18.80 -09 45 28.0 13.8 C 987

01620 C2008 03 17.88117 07 28 17.14 -09 45 45.1 14.7 C 987

01620 C2008 03 17.88262 07 28 16.37 -09 45 53.0 14.3 C 987

 

Images

 

John Fletcher

 

 

At 51.1 AU it is 1 AU closer than the last images I submitted in February.

 

D6472 C2008 03 27.07789 12 27 19.40 +29 25 04.8 16.8 V J93 D6472 C2008 03 27.08185 12 27 19.36 +29 25 04.6 16.8 V J93

----- end -----

(D6472)

(136472) 2005 FY9 mag 16.9

Right ascension: 12h27m43.952s

Declination: N29 22' 21.22"

Mean position at current epoch:

Right ascension: 12h27m43.952s

Declination: N29 22' 21.22"

Apparent position at current epoch:

Right ascension: 12h27m46.237s

Declination: N29 22' 09.46"

Dist from home planet: 51.19894022 AU (7,659,252,438 km) Cubewano or scattered disk object

Reference: MPO103109

Perihelion distance 38.2217258 AU

Aphelion distance 52.7477606 AU

Period of orbit 306.77 years (112046.2 days)

 

Maurice Gavin

 

Ceres via 350mm fl Meade ETX-70 images with 85' x 60' fov - north up on March 12 2008

 

http://www.cloudynights.com/ubbthreads/attachments/2253412-ceres080312cmo.jpg

http://www.cloudynights.com/ubbthreads/attachments/2253418-ceres080312smo.jpg

 

 

Occultations

 

Richard Miles

 

ASTEROIDAL OCCULTATION - REPORT FORM (Rev. 10/06)

====================================

 

EAON - EUROPEAN ASTEROIDAL OCCULTATION NETWORK

 

1. DATE: 2008 March 07 STAR: TYC 1808 0404-1u ASTEROID: (3273) Drukar

 

2. OBSERVER Name: Richard Miles Abbr: MIL

Address: Grange Cottage, Stourton Caundle, Dorset DT10 2JP, UK

Tel: +44 (0)1963 364651 Email: rmiles@baa.u-net.com

 

3. OBSERVING STATION - Golden Hill Observatory

Nearest City: SHERBORNE, UK

Station Latitude: 50d 55' 51.5"N Longitude: 002d 24' 19.0"W Altitude: 75m

(Datum WGS 84) Single Station

 

4. TIMING OF EVENTS OCCULTATION RECORDED? NEGATIVE

Type of event:

(S)tart observation (I)nterrupt start (D)isappearance (B)link (F)lash

(E)nd observation (J)nterrupt end (R)eappearance (O)ther (specify)

 

Event Time (UTC) Accuracy

Code (HH MM SS.ss) (+/-SS.ss) Central predicted time: 23:01 UT

S 22 57 00

E 23 05 00

 

5. TELESCOPE

Type: 1. Schmidt-Cassegrain Aperture: 280mm, f/10

Mount: German Equatorial Motor drive: Yes

Magnification: Not applicable - f.o.v. 11 x 8 arcmin

 

Type: 2. Refractor Aperture: 60mm, f/6

Mount: German Equatorial Motor drive: Yes

Magnification: Not applicable - f.o.v. 86 x 64 arcmin

 

6. TIMING AND RECORDING

Timekeeping: DCF-77

Mode: CCD imaging (Telescope 1: 0.3 sec exposure every 0.8 sec)

(Telescope 2: 0.6 sec exposures every 1.05 sec)

Device: Digital watch

Backup: Second digital watch

 

7. OBSERVING CONDITIONS

Atmospheric transparency: Good Wind: moderate Temperature: ~+5C

Star image stability : Good Star altitude: 21 degrees

Minor Planet visible? No

 

8. OBSERVATION QUALITY - Very Good

 

9. ADDITIONAL COMMENTS

Object size estimated at 33 km. Location about 50 km from predicted track centreline.

 

Best Regards: Richard Miles

Date: 2008 March 09

 

ASTEROIDAL OCCULTATION - REPORT FORM (Rev. 10/06)

====================================

 

EAON - EUROPEAN ASTEROIDAL OCCULTATION NETWORK

 

1. DATE: 2008 March 07 STAR: TYC 0148 0778-1 ASTEROID: (18996) 2000 RR53

 

2. OBSERVER Name: Richard Miles Abbr: MIL

Address: Grange Cottage, Stourton Caundle, Dorset DT10 2JP, UK

Tel: +44 (0)1963 364651 Email: rmiles@baa.u-net.com

 

3. OBSERVING STATION - Golden Hill Observatory

Nearest City: SHERBORNE, UK

Station Latitude: 50d 55' 51.5"N Longitude: 002d 24' 19.0"W Altitude: 75m

(Datum WGS 84) Single Station

 

4. TIMING OF EVENTS OCCULTATION RECORDED? NEGATIVE

Type of event:

(S)tart observation (I)nterrupt start (D)isappearance (B)link (F)lash

(E)nd observation (J)nterrupt end (R)eappearance (O)ther (specify)

 

Event Time (UTC) Accuracy

Code (HH MM SS.ss) (+/-SS.ss) Central predicted time: 20:54 UT

S 20 49 30

E 20 58 00

 

5. TELESCOPE

Type: 1. Schmidt-Cassegrain Aperture: 280mm, f/10

Mount: German Equatorial Motor drive: Yes

Magnification: Not applicable - f.o.v. 11 x 8 arcmin

 

Type: 2. Refractor Aperture: 60mm, f/6

Mount: German Equatorial Motor drive: Yes

Magnification: Not applicable - f.o.v. 86 x 64 arcmin

 

6. TIMING AND RECORDING

Timekeeping: DCF-77

Mode: CCD imaging (Telescope 1: 0.3 sec exposure every 0.8 sec)

(Telescope 2: 0.6 sec exposures every 1.05 sec)

Device: Digital watch

Backup: Second digital watch

 

7. OBSERVING CONDITIONS

Atmospheric transparency: Good Wind: moderate Temperature: ~+5C

Star image stability : Good Star altitude: 38 degrees

Minor Planet visible? No

 

8. OBSERVATION QUALITY - Very Good

 

9. ADDITIONAL COMMENTS

Object size estimated at 21 km. Location about 60 km from predicted track centreline.

 

Best Regards: Richard Miles

Date: 2008 March 09

 

ASTEROIDAL OCCULTATION - REPORT FORM (Rev. 10/07) =====================================

 

EAON - EUROPEAN ASTEROIDAL OCCULTATION NETWORK

 

1. DATE: 2008 March 30 STAR: TYC 0822 0930-1u ASTEROID: (1379)

Lomonosowa

 

2. OBSERVER Name: Richard Miles Abbr: MIL

Address: Grange Cottage, Stourton Caundle, Dorset DT10 2JP, UK

Tel: +44 (0)1963 364651 Email: rmiles@baa.u-net.com

 

3. OBSERVING STATION - Golden Hill Observatory (MPC J77) - fixed single

station

Nearest City: SHERBORNE, UK

Station Latitude: 50d 55' 51.5"N

Longitude: 002d 24' 19.0"W

Altitude: 75m

(Datum WGS 84)

 

4. TIMING OF EVENTS OCCULTATION RECORDED? NEGATIVE

Type of event:

(S)tart observation (I)nterrupt start (D)isappearance (B)link (F)lash

(E)nd observation (J)nterrupt end (R)eappearance (O)ther (specify)

 

Event Time (UTC) Accuracy

Code (HH MM SS.ss) (+/-SS.ss) Central predicted time: 19:52:20 UT

S 19 50 49

E 19 56 00

 

5. TELESCOPE

Type: Refractor Aperture: 60mm, f/6

Mount: German Equatorial Motor drive: Yes

Magnification: Not applicable - f.o.v. 43 x 32 arcmin

 

6. TIMING AND RECORDING

Timekeeping: DCF-77

Mode: CCD imaging 1.0 sec exposure every 1.64 sec

Device: Digital watch (computer clock setting accuracy = +/-0.2 sec

absolute)

Backup: Second digital watch

 

7. OBSERVING CONDITIONS

Atmospheric transparency: Good Wind: Nil Temperature: +7C

Star image stability : Good Star altitude: 48 degrees

Minor Planet visible? No

 

8. OBSERVATION QUALITY - Good

 

9. ADDITIONAL COMMENTS

No positive event longer than 1.0 sec.

Acquisition of star in main 280-mm aperture telescope proved difficult

owing to

alignment problem and lack of time (event monitoring began before start of

nautical twilight).

 

 

Best Regards: Richard Miles

Date: 2008 March 31

 

 

Hazel McGee

 

ASTEROIDAL OCCULTATION - REPORT FORM

 

+------------------------------+ +------------------------------+

| EAON | | IOTA/ES |

| | | INTERNATIONAL OCCULTATION |

| EUROPEAN ASTEROIDAL | | TIMING ASSOCIATION |

| OCCULTATION NETWORK | | EUROPEAN SECTION |

+------------------------------+ +------------------------------+

 

1 DATE: 2008/03/19 STAR: TYC 1990-03003-1 ASTEROID: Sheba N: 1196

 

2 OBSERVER: Name: Hazel McGee Abbr: HWM Phone: --

E-mail: hazelmcgee@btinternet.com

Address: 'Starfield', Dedswell Drive, West Clandon, Guildford, Surrey, UK

 

3 OBSERVING STATION: Nearest city: Guildford

Station: Clandon

Latitude N 51d 15m 57.12s

Longitude W 00d 30m 27.72s

Altitude: 57m

 

Single, OR Double or Multiple station: Single Station

 

+----------------------------------+

4 TIMING OF EVENTS: | |

| OCCULTATION RECORDED: NEGATIVE |

| |

+----------------------------------+

Type of event

Start observation Interrupt-start Disappearance Blink Flash

End observation Jnterrupt-end Reappearance Other (specify)

 

Event Time (UT) P.E. Acc.

Code HH MM SS.ss S.ss S.ss

S - 21 41 00

E - 21 46 00

5 TELESCOPE: Type: SCT

Aperture: 356mm

Magnification: x137

Mount: ALT-AZ

Motor drive: YES

6 TIMING & RECORDING:

Timekeeping: Radio controlled clock + sports stopwatch

Mode of recording: Visual & audio

Device of recording : Digital audio recorder

7 OBSERVING CONDITIONS:

Atmospheric transparency: Good

Wind: Light

Temperature: ~2C

Star image stability: Excellent

Minor planet visible: Not seen

8 ADDITIONAL COMMENTS:

An easy and comfortable observation in good conditions, bright Moon nearby did not interfere. No occultation occurred at this location.

 

Mike Beales (via Andrew Elliott)

 

Mike Beales wrote:

 

> Hi Andrew,

> I was not able to "see" 1196 Sheba on Wednesday due to the Moon glow.

> I

> did however do time-series photometry

> on TYC 1990-03003 and detected a very small drop in light output at

> 21:45:57. The drop was small, 0.04m so not sure if the

> result is genuine. Be interested in what other observers found.

>

 

Hi Mike,

 

Thanks for your report. I was in the same situation - couldn't see the

star due to moonlight illumination of thin clouds. I couldn't even

confirm it was the right field due to the paucity of other stars. (My

GOTO is usually almost spot-on.)

 

The only other reports I've seen were Hazel McGee, Bertrand Thooris, and

Tomas Janik, all negative. Hazel was just inside the southern track

limit. Bertrand was half a track width south of the track in Belgium.

And Tomas was on the northern 2sd limit in the Czech Republic. So I

don't know where the track went. But it's only by having a wide network

of observers that we can help to resolve track positions. So please

don't give up on the programme :-)

 

Best regards,

 

Andrew

 

Andrew Elliott

 

ASTEROIDAL OCCULTATION - REPORT FORM

====================================

 

EAON - EUROPEAN ASTEROIDAL OCCULTATION NETWORK

 

1. DATE: 2008 March 30 STAR: TYC 0822-00930-1u ASTEROID: (1379) Lomonosowa

 

2. OBSERVER Name: Andrew Elliott Abbr: ELL

Address: White Lodge, Bank Lane, Warton, PRESTON, PR4 1TB, UK

Tel: +44 (0)1772 632450 Email: ae@f2s.com

 

3. OBSERVING STATION - Warton Bank Observatory North - fixed single station

Nearest City: PRESTON, UK

Latitude : 53d 44' 25.6"N

Longitude: 002d 54' 25.4"W

Height above ellipsoid: 65m (EGM96 Geoid Height = 52.4m)

Datum WGS 84 - all coordinates GPS averaged 24hrs.

 

4. TIMING OF EVENTS OCCULTATION RECORDED? NEGATIVE

Type of event:

(S)tart observation (I)nterrupt start (D)isappearance (B)link (F)lash

(E)nd observation (J)Interrupt end (R)eappearance (O)ther (specify)

 

Event Time (UTC) Accuracy

Code (HH MM SS.ss) (+/-S.ss)

S 19 50 50 (Central predicted time here: 19:52:48 UT)

E 19 55 00

 

5. TELESCOPE Type: Schmidt-Cassegrain Aperture: 406mm + f/3.3 reducer

Mount: Altazimuth 'goto' Motor drive: Yes

Magnification: Video f.o.v. ~ 15' x 11' (correction to previous reports)

 

6. TIMING AND RECORDING

Timekeeping: GPS receiver - Garmin 35 HVS, 1pps output into:

Mode: On-screen display - BlackBoxCamera 'STVASTRO' GPS video Date/Time

inserter.

Device: DV camcorder recording of Watec 902H video camera at Cass. focus.

Backup: MSF 60KHz time signal beeps on audio track - synch. confirmed.

 

7. OBSERVING CONDITIONS

Atmospheric transparency: Fair Wind: Nil Temperature: +6C

Star image stability : Good Star altitude: 46 degrees

Slight scintillation - no break greater than 0.1 sec

Minor Planet visible on video? No

 

8. OBSERVATION QUALITY - Very Good

 

9. ADDITIONAL COMMENTS

(Report submitted to Gilles Regheere and PLANOCCULT.)

Positive not expected here - in 1SD zone, 87km east of track.

 

Best Regards: Andrew Elliott

Date: 2008 March 30

(Rev. Oct 07)

 

ASTEROIDAL OCCULTATION - REPORT FORM

====================================

 

EAON - EUROPEAN ASTEROIDAL OCCULTATION NETWORK

 

1. DATE: 2008 April 01 STAR: TYC 4897-01312-1 ASTEROID: (695) Bella

 

2. OBSERVER Name: Andrew Elliott Abbr: ELL

Address: White Lodge, Bank Lane, Warton, PRESTON, PR4 1TB, UK

Tel: +44 (0)1772 632450 Email: ae@f2s.com

 

3. OBSERVING STATION - Warton Bank Observatory North - fixed single station

Nearest City: PRESTON, UK

Latitude : 53d 44' 25.6"N

Longitude: 002d 54' 25.4"W

Height above ellipsoid: 65m (EGM96 Geoid Height = 52.4m)

Datum WGS 84 - all coordinates GPS averaged 24hrs.

 

4. TIMING OF EVENTS OCCULTATION RECORDED? NEGATIVE

Type of event:

(S)tart observation (I)nterrupt start (D)isappearance (B)link (F)lash

(E)nd observation (J)Interrupt end (R)eappearance (O)ther (specify)

 

Event Time (UTC) Accuracy

Code (HH MM SS.ss) (+/-S.ss)

S 20 19 00 (Central predicted time here: ~ 20:20:47 UT)

E 20 23 00

 

5. TELESCOPE Type: Schmidt-Cassegrain Aperture: 406mm + f/3.3 reducer

Mount: Altazimuth 'goto' Motor drive: Yes

Magnification: Video f.o.v. ~ 15' x 11' (correction to previous reports)

 

6. TIMING AND RECORDING

Timekeeping: GPS receiver - Garmin 35 HVS, 1pps output into:

Mode: On-screen display - BlackBoxCamera 'STVASTRO' GPS video Date/Time

inserter.

Device: DV camcorder recording of Watec 902H video camera at Cass. focus.

Backup: MSF 60KHz time signal beeps on audio track - synch. confirmed.

 

7. OBSERVING CONDITIONS

Atmospheric transparency: Good Wind: breezy Temperature: +8C

Star image stability : Good Star altitude: 31 degrees

No scintillation

Minor Planet visible on video? No

 

8. OBSERVATION QUALITY - Very Good

 

9. ADDITIONAL COMMENTS

(Report submitted to Gilles Regheere and PLANOCCULT.)

Positive not expected here - 13km west of 1 Sigma line (Occultwatcher).

 

Best Regards: Andrew Elliott

Date: 2008 April 01

(Rev. Oct 07)

 

Andrew also commented; I was also rewarded with a brilliant passage of the ISS chasing the ATV

Jules Verne 10 minutes later.

 

 

Chris Hills

 

Positive result on a pleasant spring evening ...

 

====================================
ASTEROIDAL OCCULTATION - REPORT FORM
====================================

 

1.DATE:     2008 April 01
  STAR:     TYC 4897-01312-1 (mag. 10.5)
  ASTEROID: 695 Bella

 

2.OBSERVER:
   Name:   
Chris Hills
   Phone:   +44 (0)1223 877251
   Address:
23 Borley Way, Teversham, Cambridge, UK
   E-mail: 
chris.hills@sepura.com

 

3.OBSERVING STATION:
   Nearest city:     Cambridge
   Latitude:         52d 12.1m N
   Longitude:        0d 11.5m E
   Altitude:         10 m
   Single/Multiple:  Single

 

4.TIMING OF EVENTS:
   Occultation recorded:   POSITIVE

 

   Type of event:
   "S"tart observation; "I"nterrupt-"s"tart; "D"isappearance;
   "B"link; "F"lash; "E"nd observation; "I"nterrupt-"e"nd;
   "R"eappearance; "O"ther (specify)
  
   Personal Equation Substracted:
   Event Time (UT)      P.E. Accuracy + Comments
   code: HH:MM:SS       .ss  S.ss
   S     20:19:53
   D     20:20:19.5          +/- 0.5    ) see
   R     20:20:20.5          +/- 0.5    ) notes
   E     20:20:30

 

5.TELESCOPE:
   Type:          Newtonian
   Aperture:      305 mm, f/4.2
   Magnification: x 85
   Mount:         Equatorial
   Motor drive:   Yes

 

6.TIMING & RECORDING:
   Timekeeping:         MSF signal from Anthorn on 60 kHz
   Mode of recording:   Audio recording of time pips + my commentary
   Device of recording: Visual

 

7.OBSERVING CONDITIONS:
   Atmospheric transparency:  Good
   Wind:                      Light
   Star image stability:      Good
   Temperature:               About 10 degrees C
   Relative Humidity:        
  
8.ADDITIONAL COMMENTS:
   Conditions were perfect (apart from the street lights 20 m away,

   so I used a sodium-D filter).  The two nearby stars of similar

   brightness remained visible throughout.  I've given rather wide

   error bounds because both the disappearance and the reappearance

   somewhat took me by surprise.  The duration appears to be much

   less than expected, so it looks like the path shifted by nearly

   half a path width.

 

=============================================================

 

Index to observations received from ARPS members

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