18386-2020 DON 917
18h 38m 36.49s -20° 20' 07.5" P.A. 51.00 sep 1.1 mag 11.40,13.70
| Coord 2000 |
18386-2020 |
|
Discov num |
DON 917 |
|
Comp |
|
|
Coord arcsec 2000 |
18 38 36.49 -20 20 07.5 |
|
| Date first |
1930 |
|
Date last |
2015 |
|
Obs |
3 |
|
| Pa first |
49 |
|
Pa last |
51.1 |
|
P.A. Now (θ) |
51.1° |
|
| Sep first |
0.8 |
|
Sep last |
1.149 |
|
Sep. Now (ρ) |
1.149" |
|
| Mag pri |
11.40 |
|
Mag sec |
13.70 |
|
delta mag (ΔM) |
2.3 |
|
Spectral class |
|
|
| Pri motion ra |
+013 |
|
Sec motion ra |
|
|
| Pri motion dec |
-007 |
|
Sec motion dec |
|
|
| Notes |
S
(Parallax indidates non-physical) |
|
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Sagittarius |
|
Tycho2 |
6275-00885-1 |
|
Gaia DR2 |
4092108745007580416 |
|
WDS 18386-2020 DON 917 : NOTES
No records found.
REFERENCES
| refcode |
metd |
author |
reference |
| Don1937 |
Ma j |
Donner, H.F. |
1937MmRAS..65...51R |
| Don1937 |
|
MemRAS 65, 51, 1937 |
|
| Don1955 |
Ma - |
Donner, H.F. |
1955POMic..11....1R |
| Don1955 |
|
Pub. Univ. Michigan Obs. 11, 1, 1955 |
|
| Don1964 |
Ma j |
Donner, H.F. |
1964POMic...9...73R |
| Don1964 |
|
Pub. Univ. Michigan Obs. 9, 73, 1964 |
|
WDS HISTORIC DATA
| coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
| 18386-2020 |
DON 917 |
|
1941 |
2 |
49 |
0.8 |
11.40 |
13.70 |
|
|
183836.49-202007.5 |
| 18386-2020 |
DON 917 |
|
2015 |
3 |
51 |
1.1 |
11.40 |
13.70 |
|
S |
183836.49-202007.5 |
If you need more information about this double, apply for a
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WDS 18386-2020 DON 917 : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 18386-2020 DON 917 : MEASURES
No records found.
WDS 18386-2020 : VIRTUAL EYEPIECE
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|
WDS 18386-2020 : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.
