21115+4115 STT 431 AB (HD 201936)
21h 11m 30.87s +41° 14' 28.7" P.A. 127.00 sep 2.6 mag 8.80,8.99 Sp F8 dist. 102.88 pc (335.59 l.y.)
| Coord 2000 |
21115+4115 |
|
Discov num |
STT 431 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 11 30.87 +41 14 28.7 |
|
| Date first |
1843 |
|
Date last |
2018 |
|
Obs |
77 |
|
| Pa first |
117 |
|
Pa last |
126.6 |
|
P.A. Now (θ) |
126.6° |
|
| Sep first |
3.4 |
|
Sep last |
2.577 |
|
Sep. Now (ρ) |
2.577" |
|
| Mag pri |
8.80 |
|
Mag sec |
8.99 |
|
delta mag (ΔM) |
0.19 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
-027 |
|
Sec motion ra |
-013 |
|
| Pri motion dec |
-044 |
|
Sec motion dec |
-055 |
|
| Notes |
|
|
rPM=0.315
Nature of this double is uncertain.
21115+4115 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 201936 |
|
21 11 31 +41 14 29 |
STT 431 AB |
2018 |
77 |
127 |
2.6 |
8.80 |
8.99 |
0.19 |
|
<=== |
| Show |
|
|
21 11 31 +41 14 29 |
STT 431 AC |
2015 |
5 |
356 |
55.4 |
8.80 |
11.99 |
3.19 |
|
|
| Show |
|
|
21 11 31 +41 14 27 |
STT 431 BC |
2015 |
8 |
354 |
57.1 |
8.99 |
11.99 |
3.00 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 201936 |
|
Constellation |
Cygnus |
|
HIP |
104614 |
|
Tycho2 |
3173-01179-1 |
|
| Gaia DR2 |
1968604925912904576 |
|
HD |
201936 |
|
BD |
BD+40 4435 |
|
Distance |
102.88 |
|
| Distance ly |
335.59 |
|
