Appulses between asteroids

We have processed the data from the Minor Planet Centre looking for close approaches between any of the first 25,000 objects (and also including 134340 Pluto). The following table lists approaches closer than 0.3° for which both objects are brighter than magnitude 15 and which have an elongation of at least 120° from the Sun.

The selection criteria are wider than previously. This has been agreed with the Asteroid and Remote Planets Section. Their web site will give more details of planned projects based on some of these appulses.

Photographers may be pleased to get 2 trails for the price of one. There could be scientific value in comparing the magnitudes and colours of the pair of objects as they move (and tumble) along. Being so close, the light from both will suffer almost identical atmospheric and optical effects and so should be comparable. Cases where the brightnesses differ by more than a factor of 10 (magnitude difference greater than 2.5) are not likely to yield useful results.

NB: Data are given for 0h on each date. The objects may pass closer.

The W (window) column shows the number of days for which the separation is less than 0.3°. This gives some clue as to how the orbits lie in relation to each other.

Date +
chart link
JDSep
°
W
d
Sun elong
°
------Names------MagRA
J2000
Dec
J2000
2019-02-162458530.50.0713156673 Edda
2460 Mitlincoln
14.2
14.8
08h50m42.77s
08h50m58.51s
+13d06m41.2s
+13d08m32.2s
2019-02-212458535.50.137139134 Sophrosyne
396 Aeolia
12.8
14.4
12h38m51.65s
12h38m35.03s
-08d04m25.1s
-07d57m41.0s
2019-03-012458543.50.0715171108 Hecuba
2144 Marietta
12.3
15.2
10h31m44.18s
10h31m26.08s
+10d45m24.9s
+10d44m52.5s
2019-03-042458546.50.057167916 America
1795 Woltjer
15.4
15.9
11h10m55.20s
11h10m45.93s
-00d10m11.4s
-00d08m40.2s
2019-03-082458550.50.234160111 Ate
1775 Zimmerwald
11.4
15.7
12h04m32.94s
12h03m40.43s
-07d24m51.2s
-07d21m13.2s
2019-03-092458551.50.074131788 Hohensteina
965 Angelica
13.3
15.5
14h34m59.83s
14h34m49.01s
-06d32m33.8s
-06d35m26.8s
2019-03-092458551.50.121616964 Angelina
1394 Algoa
10.5
14.9
10h44m54.23s
10h45m20.37s
+06d35m17.5s
+06d37m47.8s
2019-03-102458552.50.0413166460 Scania
1699 Honkasalo
15.1
15.8
11h59m38.78s
11h59m34.31s
-03d29m16.9s
-03d27m11.1s
2019-03-102458552.50.064166780 Armenia
11933 Himuka
14.0
16.0
10h40m14.81s
10h40m03.66s
+15d57m01.6s
+15d54m14.1s
2019-03-172458559.50.115164737 Arequipa
1046 Edwin
13.0
15.1
12h47m28.00s
12h47m01.64s
-04d17m11.5s
-04d16m27.2s
2019-03-182458560.50.0751371516 Henry
1140 Crimea
15.1
15.3
14h44m22.58s
14h44m11.13s
-01d24m25.2s
-01d21m31.7s
2019-03-222458564.50.061613542 Isis
628 Christine
12.4
13.6
09h31m51.38s
09h32m03.52s
+25d52m51.5s
+25d50m14.8s
2019-03-232458565.50.129167191 Kolga
6652 1991 SJ1
13.6
16.0
12h55m32.46s
12h55m04.58s
+03d00m45.5s
+03d00m27.9s
2019-03-252458567.50.104165478 Tergeste
3142 Kilopi
12.2
15.3
11h33m10.58s
11h33m22.40s
-14d32m20.3s
-14d37m33.6s
2019-03-262458568.50.106178319 Leona
3443 Leetsungdao
15.3
15.9
12h16m15.46s
12h16m27.35s
-01d52m04.2s
-01d46m51.6s
2019-03-262458568.50.031161769 Tatjana
37652 1994 JS1
14.0
15.4
11h27m12.15s
11h27m07.58s
+11d35m34.9s
+11d37m10.6s
2019-03-262458568.50.083124199 Byblis
6518 Vernon
14.1
15.9
09h14m24.25s
09h14m26.33s
+33d02m16.0s
+33d07m17.9s
2019-03-282458570.50.195138484 Pittsburghia
1344 Caubeta
14.4
15.5
10h08m08.72s
10h07m18.88s
+21d48m06.0s
+21d49m01.1s

Section Director
Steve Harvey

Section Director, Steve Harvey

Contact Steve

This year's Handbook