Search BAA Image Library


Showing images 22,901 – 22,950 of 27,426

22901
Title: Gassendi
Uploaded by: Bill Leatherbarrow
Observation time: 2019 Feb 15 – 21:40 UTC
Upload time: 2019 Feb 17 – 11:46 UTC
Objects:The Moon
Plate solved: Overridden
Equipment:OMC300 Mak-Cass, ASI290MM camera, IR 742nm filter
Location:Sheffield
Observer:Bill Leatherbarrow
plate_solution_flag:2
Target name:Crater Gassendi
Files associated with this observation:
22902
Title: Clavius
Uploaded by: Bill Leatherbarrow
Observation time: 2019 Feb 15 – 21:10 UTC
Upload time: 2019 Feb 17 – 11:43 UTC
Objects:The Moon
Plate solved: No
Equipment:OMC300 Mak-Cass, ASI290MM camera, IR 742nm filter
Location:Sheffield
Observer:Bill Leatherbarrow
Target name:Crater Clavius
Files associated with this observation:
22903
Title: J. Herschel
Uploaded by: Bill Leatherbarrow
Observation time: 2019 Feb 15 – 21:28 UTC
Upload time: 2019 Feb 17 – 11:41 UTC
Objects:The Moon
Plate solved: No
Equipment:OMC300 Mak-Cass, ASI290MM camera, IR 742nm filter
Location:Sheffield
Observer:Bill Leatherbarrow
Target name:Crater J. Herschel
Files associated with this observation:
22904
Title: Copernicus
Uploaded by: Bill Leatherbarrow
Observation time: 2019 Feb 15 – 21:32 UTC
Upload time: 2019 Feb 17 – 11:38 UTC
Objects:The Moon
Plate solved: No
Equipment:OMC300 Mak-Cass, ASI290MM camera, IR 742nm filter
Location:Sheffield
Observer:Bill Leatherbarrow
Target name:Crater Copernicus
Files associated with this observation:
22905
Title: Birt and Rupes recta
Uploaded by: Bill Leatherbarrow
Observation time: 2019 Feb 15 – 21:20 UTC
Upload time: 2019 Feb 17 – 11:36 UTC
Objects:The Moon
Plate solved: No
Equipment:OMC300 Mak-Cass, ASI290MM camera, IR 742nm fliter
Location:Sheffield
Observer:Bill Leatherbarrow
Target name:Crater Birt
Files associated with this observation:
22906
Title: Orion and Running Man
Uploaded by: Callum Wingrove
Observation time: 2019 Feb 15 – 21:00 UTC
Upload time: 2019 Feb 17 – 09:19 UTC
Objects:M42
Plate solved: Yes
Equipment:Skywatcher Evostar ED80, Skywatcher HEQ5 Pro , Nikon 3100 (unmodified), 0.85 focal reducer, Light Pollution filter
Exposure:ISO 800, 30s-120s exposures
Location:Stanmore , Middlesex
Observer:Callum Scott Wingrove
Target name:Orion Nebula and Running Man Nebula
Files associated with this observation:
22907
Title: The Eskimo Planetary Nebula
Uploaded by: Mike Foylan
Observation time: 2016 Nov 06 – 23:40 UTC
Upload time: 2019 Feb 16 – 19:48 UTC
Objects:NGC2392
Plate solved: Yes
Equipment:0.2-m SCT @ f7.6, Field of View 46 x 37 arcmins, CG5-GT Modified EQ Mount, Image acquisition and processing: CCD Soft v5, Mira Pro-7, TheSky6 Professional , SBIG STL-1301E CCD Camera, Image Scale 2.17 arcsec/pixel
Exposure:Blue filter image of 377 seconds, Green filter image of 173 seconds, Red filter image of 90 seconds, all unbinned.
Location:Cherryvalley Observatory (I83) Ireland.
Observer:Mike Foylan
Target name:NGC 2392
Files associated with this observation:
22908
Title: Moon waxing gibbous
Uploaded by: Alan Thomas
Observation time: 2019 Feb 15 – 17:50 UTC
Upload time: 2019 Feb 16 – 17:06 UTC
Objects:The Moon
Plate solved: No
Equipment:200mm Dobsonian, Samsung Galaxy S5
Exposure:ISO40 f2.2 1/50th sec.
Location:My home in Cheshire
Observer:Dr Alan B Thomas
Target name:Moon waxing gibbous
Files associated with this observation:
22909
Title: A Puppis pair
Uploaded by: Nick Hewitt
Observation time: 2019 Feb 04 – 22:00 UTC
Upload time: 2019 Feb 16 – 16:03 UTC
Objects:M46, M47
Plate solved: Yes
Equipment:Starwave 70mm, EQ8 , Canon 60Da, IDAS filter
Exposure:20 x 60secs
Location:Northampton
Observer:Nick Hewitt
Target name:Messiers 46 & 47
Files associated with this observation:
22910
Title: Messier 81
Uploaded by: Nik Szymanek
Observation time: 2019 Feb 15 – 13:06 UTC
Upload time: 2019 Feb 16 – 13:08 UTC
Objects:M81
Plate solved: Yes
Equipment:GSO 10" (254mm) RC telescope, QSI 583 wsg CCD camera, Astrodon LRGB and Ha filters, Paramount ME equatorial mount, AP 0.67 focal reducer
Exposure:300 and 600 second exposures 20 hours total.
Location:Boxted, Essex.
Observer:Nik Szymanek
Target name:Messier 81
Files associated with this observation:
22911
Title: Mars Uranus Conjunction 2
Uploaded by: Andrew Paterson
Observation time: 2019 Feb 15 – 19:32 UTC
Upload time: 2019 Feb 15 – 23:09 UTC
Objects:Mars, Uranus, Conjunction
Plate solved: Yes
Equipment:Canon Powershot G7X
Exposure:6s F1.8 ISO 400
Location:Hill Head Fareham
Observer:Andrew Paterson
Target name:Mars and Uranus
Files associated with this observation:
22912
Title: Mars
Uploaded by: Simon Kidd
Observation time: 2019 Feb 14 – 17:00 UTC
Upload time: 2019 Feb 15 – 20:45 UTC
Objects:Mars
Plate solved: No
Equipment:Celestron C14, Zwo ASI 224 camera, ZWO ADC
Location:Cottered, Herts
Observer:Simon Kidd
Target name:Mars
Files associated with this observation:
22913
Title: Light Bridges of AR 2673
Uploaded by: Randy Tatum
Observation time: 2017 Sep 08 – 14:06 UTC
Upload time: 2019 Feb 15 – 20:24 UTC
Objects:The Sun
Plate solved: No
Equipment:7" f/15 Refractor, 2x Barlow, Baader UV/IR block filter, Pentaprism, ASI224MC
Location:Richmond, Virginia USA
Observer:Randy Tatum
Target name:Sunspot group
Files associated with this observation:
22914
Title: Video astrometry of comet C/2018 Y1 (Iwamoto)
Uploaded by: Alex Pratt
Observation time: 2019 Feb 14 – 23:24 UTC
Upload time: 2019 Feb 15 – 13:25 UTC
Objects:C/2018 Y1 (Iwamoto)
Plate solved: No
Equipment:C11 f/10 @ f/3.3, Watec 910 video camera, IOTA-VTI GPS time inserter, OccuRec (recording), Tangra (reduction)
Exposure:0.64s integrations
Location:Z92
Observer:Alex Pratt
Target name:Comet C/2018 Y1 (Iwamoto)
Files associated with this observation:
22915
Title: Mars Uranus Conjunction
Uploaded by: Andrew Paterson
Observation time: 2019 Feb 13 – 19:15 UTC
Upload time: 2019 Feb 15 – 11:59 UTC
Objects:Mars, Uranus, Conjunction
Plate solved: Yes
Equipment:Canon Powershot G7X
Exposure:8s F1.8 ISO400
Location:Hill Head, Fareham
Observer:Andrew Paterson
Target name:Mars and Uranus Conjunction
Files associated with this observation:
22916
Title: Star clusters in Auriga
Uploaded by: Peter Mulligan
Observation time: 2019 Feb 14 – 19:55 UTC
Upload time: 2019 Feb 15 – 10:26 UTC
Objects:NGC1907, M38
Plate solved: Yes
Equipment:Skywatcher 200p on EQ5, Canon 1100D
Exposure:32-30sec, 800ISO
Location:Sheffield UK
Observer:Peter Mulligan
Target name:M38 and NGC 1907
Files associated with this observation:
22917
Title: Orion Nebula
Uploaded by: Callum Wingrove
Observation time: 2019 Feb 13 – 21:45 UTC
Upload time: 2019 Feb 15 – 06:36 UTC
Objects:M42
Plate solved: Yes
Equipment:Skywatcher Evostar ED80, Skywatcher HEQ5 Pro, Nikon 3100
Exposure:ISO 800
Location:Stanmore, Middlesex
Observer:Callum Scott Wingrove
Target name:Orion Nebula
Files associated with this observation:
22918
Title: Mars 14th Feb 2019
Uploaded by: Martin Lewis
Observation time: 2019 Feb 14 – 19:29 UTC
Upload time: 2019 Feb 14 – 22:29 UTC
Objects:Mars
Plate solved: No
Equipment:444mm Dobsonian, ASI224MC
Location:St Albans, UK
Observer:Martin Lewis
Target name:Mars
Files associated with this observation:
22919
Title: Comet C/2018 Iwamoto
Uploaded by: Neil Morrison
Observation time: 2019 Feb 13 – 22:58 UTC
Upload time: 2019 Feb 14 – 18:26 UTC
Objects:C/2018 Y1 (Iwamoto)
Plate solved: Yes
Equipment:90mm F 5.5 Star Sky Refractor, Sony 65a Slt
Exposure:Stack of 10 Frames 25Sec ISO 3200
Location:Crawley West Sussex
Observer:Neil Morrison
Target name:Comet Iwamoto
Files associated with this observation:
22920
Title: C/2018 Y1 (Iwamoto) and NGC 2903
Uploaded by: Nick James
Observation time: 2019 Feb 14 – 01:52 UTC
Upload time: 2019 Feb 14 – 18:15 UTC
Objects:C/2018 Y1 (Iwamoto), NGC2903
Plate solved: Yes
Equipment:90mm, f/5 refr. ASI294MC
Exposure:60x60s
Location:Chelmsford, UK
Observer:Nick James
Target name:C/2018 Y1
Files associated with this observation:
22921
Title: Solar Projection Screen
Uploaded by: Alan Thomas
Observation time: 2018 Oct 10 – 12:52 UTC
Upload time: 2019 Feb 14 – 16:39 UTC
Objects:Observatory, Equipment
Plate solved: No
Location:My home in Cheshire
Observer:Dr Alan B Thomas
Target name:Solar Projection Screen
Files associated with this observation:
22922
Title: Indoor Astronomy
Uploaded by: Alan Thomas
Observation time: 2019 Feb 14 – 13:31 UTC
Upload time: 2019 Feb 14 – 13:38 UTC
Objects:The Earth
Plate solved: No
Location:My home in Cheshire
Observer:Dr Alan B Thomas
Target name:Earth-sun system model - Mk3
Files associated with this observation:
22923
Title: 2018Y1 Iwamoto
Uploaded by: David Strange
Observation time: 2019 Feb 13 – 22:13 UTC
Upload time: 2019 Feb 14 – 12:14 UTC
Objects:C/2018 Y1 (Iwamoto)
Plate solved: Yes
Equipment:C8 Hyperstar, SXVF-H9C
Exposure:20 x30s
Location:Salcombe Regis
Observer:David Strange
Target name:2018Y1 (Iwamoto)
Files associated with this observation:
22924
Title: Mars Uranus conjunction
Uploaded by: Steve Knight
Observation time: 2019 Feb 13 – 18:25 UTC
Upload time: 2019 Feb 14 – 10:03 UTC
Objects:Mars, Uranus, Conjunction
Plate solved: Yes
Equipment:Canon 550D Camera, Starwave 70mm f6 doublet refractor
Exposure:x102 1 sec exposures at ISO1600
Location:Banbury
Observer:Steve Knight
Target name:Mars + Uranus
Files associated with this observation:
22925
Title: Comet 2018 Y1 (Iwamoto) & NGC 2903. itel Spain. 2019 Feb 13th
Uploaded by: Martin Mobberley
Observation time: 2019 Feb 13 – 21:50 UTC
Upload time: 2019 Feb 14 – 10:01 UTC
Objects:C/2018 Y1 (Iwamoto), NGC2903
Plate solved: Yes
Observer:Martin Mobberley
Files associated with this observation:
22926
Title: Lunar Eclipse
Uploaded by: Honor Wheeler
Observation time: 2019 Jan 21 – 05:43 UTC
Upload time: 2019 Feb 13 – 23:17 UTC
Objects:Eclipse
Plate solved: No
Equipment:2006 Sky-watcher ED80 refractor, EQ3 synscan mount, Canon 1100D
Exposure:ISO 100, 20 sec exposure.
Location:The Dick Chambers Observatory
Observer:Honor Wheeler
Files associated with this observation:
22927
Title: Lunar Eclipse
Uploaded by: Honor Wheeler
Observation time: 2019 Jan 21 – 04:42 UTC
Upload time: 2019 Feb 13 – 23:13 UTC
Objects:Eclipse
Plate solved: Yes
Equipment:2006 Sky-watcher ED80, EQ3 synscan mount, Canon EOS 1100D
Exposure:ISO 100, 10 sec exposure.
Location:The Dick Chambers Observatory
Observer:Honor Wheeler
Files associated with this observation:
22928
Title: Mars 13th Feb 2018
Uploaded by: Martin Lewis
Observation time: 2019 Feb 13 – 18:56 UTC
Upload time: 2019 Feb 13 – 22:59 UTC
Objects:Mars
Plate solved: No
Equipment:444mm Dobsonian, ASI224MC
Location:St Albans
Observer:Martin Lewis
Target name:Mars
Files associated with this observation:
22929
Title: Moon, Venus conjunction
Uploaded by: Honor Wheeler
Observation time: 2018 Dec 04 – 07:13 UTC
Upload time: 2019 Feb 13 – 22:59 UTC
Objects:Venus, Conjunction
Plate solved: No
Equipment:Canon EOS 1100D
Exposure:ISO 400, f/6.3, 1.20sec. FL28mm
Location:Kent
Observer:Honor Wheeler
Files associated with this observation:
22930
Title: Lunar Eclipse
Uploaded by: Honor Wheeler
Observation time: 2019 Jan 21 – 04:15 UTC
Upload time: 2019 Feb 13 – 22:52 UTC
Objects:Eclipse
Plate solved: Yes
Equipment:2006 Sky-watcher ED80 refractor, EQ3 synscan mount, Canon EOS 1100D
Exposure:ISO 100, 10 sec' exposure
Location:The Dick Chambers Observatory
Observer:Honor Wheeler
Files associated with this observation:
22931
Title: Lunar Eclipse
Uploaded by: Honor Wheeler
Observation time: 2019 Jan 21 – 05:12 UTC
Upload time: 2019 Feb 13 – 22:45 UTC
Objects:Eclipse
Plate solved: Yes
Equipment:2006 Sky-watcher ED80 refractor, EQ3 synscan mount, Canon EOS 100D
Exposure:ISO 100, 20sec exposure
Location:The Dick Chambers Observatory
Observer:Honor Wheeler
Files associated with this observation:
22932
Title: Moon Screenshot taken at same time as Iwomoto image
Uploaded by: Len Adam
Observation time: 2019 Feb 13 – 22:20 UTC
Upload time: 2019 Feb 13 – 22:45 UTC
Objects:The Moon
Plate solved: No
Equipment:Paramount MyT, 8-inch RC telescope, ZWO 1600 mono
Exposure:0.001s
Location:Albox Spain
Observer:Len Adam
Target name:Moon
Files associated with this observation:
22933
Title: Iwomoto Y1 passing NGC 2903 Spiral Galaxy
Uploaded by: Len Adam
Observation time: 2019 Feb 13 – 22:20 UTC
Upload time: 2019 Feb 13 – 22:29 UTC
Objects:NGC2903
Plate solved: Yes
Equipment:Paramount MyT, 8-inch RC telescope, ZWO 1600 mono
Exposure:Single 30second exposure
Location:Albox Spain
Observer:Len Adam
Target name:C/2018 Y1 Iwomoto
Files associated with this observation:
22934
Title: C/2018 Y1 Iwamoto
Uploaded by: Terry Evans
Observation time: 2019 Feb 13 – 13:27 UTC
Upload time: 2019 Feb 13 – 14:32 UTC
Objects:C/2018 Y1 (Iwamoto)
Plate solved: No
Equipment:Moravian G4-16000, Orion Optics AG12, Paramount ME
Exposure:10 * 60s
Location:Warrumbungle Observatory, Coonabarabran, NSW
Observer:Terry Evans
Target name:C/2018 Y1 Iwamoto
Files associated with this observation:
22935
Title: C/2018 Y1 Iwamoto
Uploaded by: Terry Evans
Observation time: 2019 Feb 13 – 13:27 UTC
Upload time: 2019 Feb 13 – 14:22 UTC
Objects:C/2018 Y1 (Iwamoto)
Plate solved: No
Equipment:Moravian G4-16000, Orion Optics AG12, Paramount ME
Exposure:10 * 60s
Location:Warrumbungle Observatory, Coonabarabran, NSW
Observer:Terry Evans
Target name:C/2018 Y1 Iwamoto
Files associated with this observation:
22936
Title: C/2018 Y1 Iwamoto
Uploaded by: Terry Evans
Observation time: 2019 Feb 11 – 13:05 UTC
Upload time: 2019 Feb 13 – 14:16 UTC
Objects:C/2018 Y1 (Iwamoto)
Plate solved: No
Equipment:Moravian G4-16000, Orion Optics AG12, Paramount ME
Exposure:10 * 60s
Location:Warrumbungle Observatory, Coonabarabran, NSW
Observer:Terry Evans
Target name:C/2018 Y1 Iwamoto
Files associated with this observation:
22937
Title: C/2018 Y1 Iwamoto
Uploaded by: Terry Evans
Observation time: 2019 Feb 10 – 14:00 UTC
Upload time: 2019 Feb 13 – 14:12 UTC
Objects:C/2018 Y1 (Iwamoto)
Plate solved: No
Equipment:Moravian G4-16000, Orion Optics AG12, Paramount ME
Exposure:10 * 60s
Location:Warrumbungle Observatory, Coonabarabran, NSW
Observer:Terry Evans
Target name:C/2018 Y1 Iwamoto
Files associated with this observation:
22938
Title: Comet 2018 Y1 (Iwamoto) via itel New Mexico on 2019 Feb 13th
Uploaded by: Martin Mobberley
Observation time: 2019 Feb 13 – 09:30 UTC
Upload time: 2019 Feb 13 – 10:45 UTC
Objects:C/2018 Y1 (Iwamoto)
Plate solved: No
Observer:Martin Mobberley
Files associated with this observation:
22939
Title: Nemesis in Taurus
Uploaded by: Len Adam
Observation time: 2019 Feb 09 – 20:53 UTC
Upload time: 2019 Feb 13 – 07:19 UTC
Objects:128 Nemesis
Plate solved: No
Equipment:Paramount MyT, 8-inch RC telescope, ZWO 1600 mono
Exposure:30s x 2 RGB 30s x 3 L
Location:Albox Spain
Observer:Len Adam
Target name:Nemesis
Files associated with this observation:
22940
Title: Harmonia in Taurus
Uploaded by: Len Adam
Observation time: 2019 Feb 09 – 21:33 UTC
Upload time: 2019 Feb 13 – 05:46 UTC
Objects:40 Harmonia
Plate solved: Yes
Equipment:Paramount MyT, 8-inch RC telescope, ZWO 1600 mono
Location:Albox Spain
Observer:Len Adam
Target name:Harmonia
Files associated with this observation:
22941
Title: Indoor Astronomy
Uploaded by: Alan Thomas
Observation time: 2019 Feb 12 – 17:47 UTC
Upload time: 2019 Feb 12 – 18:24 UTC
Objects:The Earth
Plate solved: No
Location:My home in Cheshire
Observer:Dr Alan B Thomas
Target name:Earth-Sun system model - Mk2
Files associated with this observation:
22942
Title: Comet 64P Swift-Gehrels nears Barnard Dark Nebula B19
Uploaded by: Peter Carson
Observation time: 2019 Feb 10 – 21:53 UTC
Upload time: 2019 Feb 12 – 16:04 UTC
Objects:64P Swift-Gehrels, Barnard 19
Plate solved: Yes
Equipment:315mm reflector, Paramount, UV/IR cut filter, unguided, sbig ST 8300
Exposure:18 x 60 sec exposures stacked
Location:Leigh on sea nr Southend Essex
Observer:Peter Carson
Target name:Comet 64P Swift-Gehrels nears Barnard Dark Nebula B19
Files associated with this observation:
22943
Title: Hebe in Orion
Uploaded by: Len Adam
Observation time: 2019 Feb 09 – 21:08 UTC
Upload time: 2019 Feb 12 – 15:47 UTC
Objects:6 Hebe
Plate solved: No
Equipment:Paramount MyT, 8-inch RC telescope, ZWO 1600 mono
Exposure:60s per RGB filter - 120s Luminance filter
Location:Albox Spain
Observer:Len Adam
Target name:Hebe
Files associated with this observation:
22944
Title: Comet Y1 Iwamoto
Uploaded by: Peter Mulligan
Observation time: 2019 Feb 11 – 23:16 UTC
Upload time: 2019 Feb 12 – 11:04 UTC
Objects:C/2018 Y1 (Iwamoto)
Plate solved: Yes
Equipment:Skywatcher 200p on EQ5, Canon 1100D
Exposure:22-30sec, 800ISO
Location:Sheffield, UK
Observer:Peter Mulligan
Target name:Comet Y1 Iwamoto
Files associated with this observation:
22945
Title: Comet 2018 Y1 (Iwamoto) via itel New Mexico on 2019 Feb 12th
Uploaded by: Martin Mobberley
Observation time: 2019 Feb 12 – 08:28 UTC
Upload time: 2019 Feb 12 – 10:13 UTC
Objects:C/2018 Y1 (Iwamoto)
Plate solved: No
Observer:Martin Mobberley
Files associated with this observation:
22946
Title: Comet 2018Y1 Iwamoto
Uploaded by: David Strange
Observation time: 2019 Feb 12 – 00:08 UTC
Upload time: 2019 Feb 12 – 10:08 UTC
Objects:C/2018 Y1 (Iwamoto)
Plate solved: No
Equipment:C8 Hyperstar, SXV-H9C
Exposure:30 x 30s
Location:Salcombe Regis, East Devon
Observer:David Strange
Target name:2018Y1 Iwamoto
Files associated with this observation:
22947
Title: Rosette Nebula
Uploaded by: Nik Szymanek
Observation time: 2019 Feb 11 – 23:00 UTC
Upload time: 2019 Feb 12 – 00:41 UTC
Objects:NGC2239, NGC2237, NGC2246
Plate solved: Yes
Equipment:Pentax SDHF 75mm apochromatic refractor, QSI 583 wsg CCD camera, Astrodon H-alpha, OIII and SII filters, Paramount ME equatorial mount, AP 0.67 focal reducer
Location:Boxted, Essex.
Observer:Nik Szymanek
Target name:Rosette Nebula
Files associated with this observation:
22948
Title: Juno in Taurus
Uploaded by: Len Adam
Observation time: 2019 Feb 11 – 23:30 UTC
Upload time: 2019 Feb 11 – 23:33 UTC
Objects:3 Juno
Plate solved: Yes
Equipment:Paramount MyT, 8-inch RC telescope, ZWO 1600 mono
Exposure:60 s per filter
Location:Albox Spain
Observer:Len Adam
Target name:Juno
Files associated with this observation:
22949
Title: V799 Auriga
Uploaded by: Dave Smith
Observation time: 2019 Feb 10 – 17:30 UTC
Upload time: 2019 Feb 11 – 18:24 UTC
Objects:Lightcurve, Variable star
Plate solved: No
Equipment:Celestron EdgeHD 11" with 0.7x FR, EQ8 mount, Atik 460EX mono CCD, AstroImageJ photometry software
Exposure:Multiple 30 seconds
Location:Maldo, Essex
Observer:Dave Smith
Target name:V799 Aur
Files associated with this observation:
22950
Title: Comet 2018 Y1 (Iwamoto) via itel Siding Spring on 2019 Feb 11th
Uploaded by: Martin Mobberley
Observation time: 2019 Feb 11 – 15:38 UTC
Upload time: 2019 Feb 11 – 16:49 UTC
Objects:C/2018 Y1 (Iwamoto)
Plate solved: Yes
Observer:Martin Mobberley
Files associated with this observation:
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.