21091+1906 COU 329
21h 09m 07.72s +19° 05' 48.2" P.A. 99.00 sep 0.6 mag 12.03,11.99 Sp G5 dist. 138.5 pc (451.79 l.y.)
Coord 2000 |
21091+1906 |
|
Discov num |
COU 329 |
|
Comp |
|
|
Coord arcsec 2000 |
21 09 07.72 +19 05 48.2 |
|
Date first |
1968 |
|
Date last |
2016 |
|
Obs |
5 |
|
Pa first |
102 |
|
Pa last |
98.6 |
|
P.A. Now (θ) |
98.6° |
|
Sep first |
0.6 |
|
Sep last |
0.64 |
|
Sep. Now (ρ) |
0.64" |
|
Mag pri |
12.03 |
|
Mag sec |
11.99 |
|
delta mag (ΔM) |
0.04 |
|
Spectral class |
G5 (yellow) |
|
Pri motion ra |
-018 |
|
Sec motion ra |
|
|
Pri motion dec |
-016 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Pegasus |
|
HIP |
104416 |
|
Tycho2 |
1657-00561-1 |
|
Gaia DR2 |
1789206207838189696 |
|
BD |
BD+18 4714 |
|
Distance |
138.5 |
|
Distance ly |
451.79 |
|