19517+3108 ES 357 AB (HD 187981)
19h 51m 41.33s +31° 08' 16.1" P.A. 309.00 sep 10.1 mag 7.12,12.40 Sp F0IV dist. 215.98 pc (704.53 l.y.)
| Coord 2000 |
19517+3108 |
|
Discov num |
ES 357 |
|
Comp |
AB |
|
Coord arcsec 2000 |
19 51 41.33 +31 08 16.1 |
|
| Date first |
1900 |
|
Date last |
2021 |
|
Obs |
8 |
|
| Pa first |
310 |
|
Pa last |
309.4 |
|
P.A. Now (θ) |
309.4° |
|
| Sep first |
9.4 |
|
Sep last |
10.06 |
|
Sep. Now (ρ) |
10.06" |
|
| Mag pri |
7.12 |
|
Mag sec |
12.40 |
|
delta mag (ΔM) |
5.28 |
|
Spectral class |
F0IV (yellow-white) |
|
| Pri motion ra |
-002 |
|
Sec motion ra |
|
|
| Pri motion dec |
-006 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
19517+3108 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 187981 |
68974 |
19 51 41 +31 08 16 |
ES 357 AB |
2021 |
8 |
309 |
10.1 |
7.12 |
12.40 |
5.28 |
|
<=== |
| Show |
|
68974 |
19 51 41 +31 08 16 |
STT 389 AC |
2021 |
27 |
184 |
12.7 |
7.12 |
9.53 |
2.41 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 187981 |
|
Constellation |
Cygnus |
|
SAO |
68974 |
|
HIP |
97733 |
|
| Tycho2 |
2669-04293-1 |
|
Gaia DR2 |
2033506318513307264 |
|
HD |
187981 |
|
GC |
27511 |
|
| ADS |
13038 |
|
BD |
BD+30 3779 |
|
Distance |
215.98 |
|
Distance ly |
704.53 |
|
