20379+4757 STF 2707 AB (HD 196808)
20h 37m 51.14s +47° 56' 41.9" P.A. 29.00 sep 21.8 mag 7.94,9.45 Sp A0 dist. 172.12 pc (561.46 l.y.)
| Coord 2000 |
20379+4757 |
|
Discov num |
STF2707 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 37 51.14 +47 56 41.9 |
|
| Date first |
1832 |
|
Date last |
2015 |
|
Obs |
34 |
|
| Pa first |
32 |
|
Pa last |
29.4 |
|
P.A. Now (θ) |
29.4° |
|
| Sep first |
23.1 |
|
Sep last |
21.767 |
|
Sep. Now (ρ) |
21.767" |
|
| Mag pri |
7.94 |
|
Mag sec |
9.45 |
|
delta mag (ΔM) |
1.51 |
|
Spectral class |
A0 (white) |
|
| Pri motion ra |
+003 |
|
Sec motion ra |
-002 |
|
| Pri motion dec |
-001 |
|
Sec motion dec |
-004 |
|
| Notes |
|
|
rPM=1.304
This double is not physical.
20379+4757 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 196808 |
49879 |
20 37 51 +47 56 42 |
STF 2707 AB |
2015 |
34 |
29 |
21.8 |
7.94 |
9.45 |
1.51 |
|
<=== |
| Show |
|
49879 |
20 37 51 +47 56 42 |
STF 2707 AC |
2015 |
35 |
195 |
55.3 |
7.94 |
8.62 |
0.68 |
|
|
| Show |
|
49879 |
20 37 51 +47 56 42 |
ES 2697 AD |
2015 |
7 |
192 |
17.5 |
7.94 |
14.30 |
6.36 |
|
|
| Show |
|
|
20 37 52 +47 57 01 |
GUI 33 BC |
2015 |
30 |
199 |
76.6 |
9.45 |
8.62 |
0.83 |
|
|
| Show |
|
|
20 37 50 +47 55 48 |
HDS 2944 Ca,Cb |
2008 |
3 |
29 |
0.4 |
8.75 |
12.31 |
3.56 |
|
|
Quintuple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 196808 |
|
Constellation |
Cygnus |
|
SAO |
49879 |
|
HIP |
101804 |
|
| Tycho2 |
3578-01530-1 |
|
Gaia DR2 |
2167668692928075136 |
|
HD |
196808 |
|
GC |
28738 |
|
| BD |
BD+47 3153 |
|
Distance |
172.12 |
|
Distance ly |
561.46 |
|
