21179+3454 BU 9011 AE
21h 17m 55.07s +34° 53' 48.8" P.A. 67.00 sep 34.4 mag 4.36,13.70 Sp B2Vne dist. 196.85 pc (642.12 l.y.)
| Coord 2000 |
21179+3454 |
|
Discov num |
BU 9011 |
|
Comp |
AE |
|
Coord arcsec 2000 |
21 17 55.07 +34 53 48.8 |
|
| Date first |
1874 |
|
Date last |
2015 |
|
Obs |
5 |
|
| Pa first |
60 |
|
Pa last |
67.4 |
|
P.A. Now (θ) |
67.4° |
|
| Sep first |
40.0 |
|
Sep last |
34.41 |
|
Sep. Now (ρ) |
34.41" |
|
| Mag pri |
4.36 |
|
Mag sec |
13.70 |
|
delta mag (ΔM) |
9.34 |
|
Spectral class |
B2Vne (blue-white) |
|
| Pri motion ra |
+014 |
|
Sec motion ra |
|
|
| Pri motion dec |
-002 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
21179+3454 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Ups Cyg |
71173 |
21 17 55 +34 53 49 |
STT 433 AB |
2015 |
22 |
219 |
15.2 |
4.36 |
10.80 |
6.44 |
|
|
| Show |
|
71173 |
21 17 55 +34 53 49 |
STT 433 AC |
2015 |
25 |
184 |
22.1 |
4.36 |
9.95 |
5.59 |
|
|
| Show |
|
71173 |
21 17 55 +34 53 49 |
SLE 382 AD |
2015 |
7 |
307 |
57.1 |
4.36 |
13.10 |
8.74 |
|
|
| Show |
|
71173 |
21 17 55 +34 53 49 |
BU 9011 AE |
2015 |
5 |
67 |
34.4 |
4.36 |
13.70 |
9.34 |
|
<=== |
| Show |
|
|
21 17 54 +34 53 37 |
STT 433 BC |
2015 |
20 |
141 |
13.2 |
10.80 |
9.95 |
0.85 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
71173 |
|
HIP |
105138 |
|
Tycho2 |
2710-02647-1 |
|
| Gaia DR2 |
1867360078463936512 |
|
HD |
202904 |
|
HR |
8146 |
|
GC |
29802 |
|
| ADS |
14831 |
|
BD |
BD+34 4371 |
|
Bayer |
Upsilon Cygni |
|
Bayer name |
Ups Cyg |
|
| Flamsteed |
66 Cygni |
|
Flamsteed name |
66 Cyg |
|
FK5 |
1559 |
|
Distance |
196.85 |
|
| Distance ly |
642.12 |
|
Bayer greek |
υ Cyg |
|
