20406+2948 HO 137 AB (HD 197120)
20h 40m 36.26s +29° 48' 19.6" P.A. 358.00 sep 0.8 mag 6.13,9.26 Sp A2V dist. 74.24 pc (242.17 l.y.)
| Coord 2000 |
20406+2948 |
|
Discov num |
HO 137 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 40 36.26 +29 48 19.6 |
|
| Date first |
1885 |
|
Date last |
2014 |
|
Obs |
31 |
|
| Pa first |
279 |
|
Pa last |
357.7 |
|
P.A. Now (θ) |
357.7° |
|
| Sep first |
1.2 |
|
Sep last |
0.796 |
|
Sep. Now (ρ) |
0.796" |
|
| Mag pri |
6.13 |
|
Mag sec |
9.26 |
|
delta mag (ΔM) |
3.13 |
|
Spectral class |
A2V (white) |
|
| Pri motion ra |
+020 |
|
Sec motion ra |
|
|
| Pri motion dec |
+046 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
20406+2948 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
88997 |
20 40 36 +29 48 20 |
GII 290 Aa,Ab |
2014 |
1 |
43 |
0.1 |
6.90 |
6.90 |
0.00 |
|
|
| Show |
HD 197120 |
88997 |
20 40 36 +29 48 20 |
HO 137 AB |
2014 |
31 |
358 |
0.8 |
6.13 |
9.26 |
3.13 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 197120 |
|
Constellation |
Cygnus |
|
SAO |
88997 |
|
HIP |
102033 |
|
| Tycho2 |
2182-00750-1 |
|
HD |
197120 |
|
HR |
7917 |
|
GC |
28816 |
|
| ADS |
14149 |
|
BD |
BD+29 4131 |
|
Distance |
74.24 |
|
Distance ly |
242.17 |
|
