21187+2118 HDS 3033 Aa,Ab
21h 18m 40.58s +21° 17' 47.1" P.A. 319.00 sep 0.0 mag 9.70,10.31 Sp F2
| Coord 2000 |
21187+2118 |
|
Discov num |
HDS3033 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
21 18 40.58 +21 17 47.1 |
|
| Date first |
1991 |
|
Date last |
2011 |
|
Obs |
3 |
|
| Pa first |
349 |
|
Pa last |
318.9 |
|
P.A. Now (θ) |
318.9° |
|
| Sep first |
0.1 |
|
Sep last |
0.041 |
|
Sep. Now (ρ) |
0.041" |
|
| Mag pri |
9.70 |
|
Mag sec |
10.31 |
|
delta mag (ΔM) |
0.61 |
|
Spectral class |
F2 (yellow-white) |
|
| Pri motion ra |
-002 |
|
Sec motion ra |
|
|
| Pri motion dec |
-017 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
21187+2118 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 18 41 +21 17 47 |
HDS 3033 Aa,Ab |
2011 |
3 |
319 |
0.0 |
9.70 |
10.31 |
0.61 |
|
<=== |
| Show |
HD 202976 |
89606 |
21 18 41 +21 17 47 |
ARY 62 AB |
2006 |
11 |
105 |
88.1 |
9.14 |
9.43 |
0.29 |
|
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Vulpecula |
|
Tycho2 |
1662-00317-1 |
|
Gaia DR2 |
1791352179657388928 |
|
