21307+0005 A 888 (HD 204738)
21h 30m 42.53s +00° 04' 54.4" P.A. 36.00 sep 0.6 mag 9.84,9.89 Sp G0
Coord 2000 |
21307+0005 |
|
Discov num |
A 888 |
|
Comp |
|
|
Coord arcsec 2000 |
21 30 42.53 +00 04 54.4 |
|
Date first |
1904 |
|
Date last |
2017 |
|
Obs |
16 |
|
Pa first |
77 |
|
Pa last |
35.7 |
|
P.A. Now (θ) |
35.7° |
|
Sep first |
0.7 |
|
Sep last |
0.57 |
|
Sep. Now (ρ) |
0.57" |
|
Mag pri |
9.84 |
|
Mag sec |
9.89 |
|
delta mag (ΔM) |
0.05 |
|
Spectral class |
G0 (yellow) |
|
Pri motion ra |
+024 |
|
Sec motion ra |
+024 |
|
Pri motion dec |
-046 |
|
Sec motion dec |
-046 |
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 204738 |
|
Constellation |
Aquarius |
|
SAO |
145447 |
|
Tycho2 |
0542-00364-1 |
|
Gaia DR2 |
2687770781283212032 |
|
HD |
204738 |
|