20057+3536 SHJ 316 AB (HD 190864)
20h 05m 39.80s +35° 36' 28.1" P.A. 323.00 sep 69.4 mag 7.79,8.82 Sp O7IIIe dist. 487.8 pc (1591.2 l.y.)
| Coord 2000 |
20057+3536 |
|
Discov num |
SHJ 316 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 05 39.80 +35 36 28.1 |
|
| Date first |
1876 |
|
Date last |
2018 |
|
Obs |
31 |
|
| Pa first |
324 |
|
Pa last |
322.8 |
|
P.A. Now (θ) |
322.8° |
|
| Sep first |
69.4 |
|
Sep last |
69.44 |
|
Sep. Now (ρ) |
69.44" |
|
| Mag pri |
7.79 |
|
Mag sec |
8.82 |
|
delta mag (ΔM) |
1.03 |
|
Spectral class |
O7IIIe (blue) |
|
| Pri motion ra |
-004 |
|
Sec motion ra |
-004 |
|
| Pri motion dec |
-007 |
|
Sec motion dec |
-007 |
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
20057+3536 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 190864 |
69391 |
20 05 40 +35 36 28 |
SHJ 316 AB |
2018 |
31 |
323 |
69.4 |
7.79 |
8.82 |
1.03 |
|
<=== |
| Show |
|
|
20 05 36 +35 37 23 |
ES 24 BC |
2018 |
11 |
241 |
11.3 |
8.82 |
13.80 |
4.98 |
|
|
| Show |
|
|
20 05 36 +35 37 23 |
ES 24 BD |
2018 |
14 |
86 |
17.1 |
8.82 |
13.11 |
4.29 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 190864 |
|
Constellation |
Cygnus |
|
SAO |
69391 |
|
HIP |
98976 |
|
| Tycho2 |
2678-00109-1 |
|
Gaia DR2 |
2059070135632404992 |
|
HD |
190864 |
|
BD |
BD+35 3949 |
|
| Distance |
487.8 |
|
Distance ly |
1591.2 |
|
