20289+5655 TOB 187 AD
20h 28m 52.84s +56° 55' 23.0" P.A. 189.00 sep 31.2 mag 9.73,11.80 Sp K0
| Coord 2000 |
20289+5655 |
|
Discov num |
TOB 187 |
|
Comp |
AD |
|
Coord arcsec 2000 |
20 28 52.84 +56 55 23.0 |
|
| Date first |
1983 |
|
Date last |
2015 |
|
Obs |
10 |
|
| Pa first |
189 |
|
Pa last |
188.7 |
|
P.A. Now (θ) |
188.7° |
|
| Sep first |
28.8 |
|
Sep last |
31.217 |
|
Sep. Now (ρ) |
31.217" |
|
| Mag pri |
9.73 |
|
Mag sec |
11.80 |
|
delta mag (ΔM) |
2.07 |
|
Spectral class |
K0 (yellow-orange) |
|
| Pri motion ra |
+022 |
|
Sec motion ra |
-002 |
|
| Pri motion dec |
+039 |
|
Sec motion dec |
+004 |
|
| Notes |
|
|
rPM=0.948
This double is not physical.
20289+5655 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 239426 |
32618 |
20 28 53 +56 55 23 |
STI 2535 AB |
2016 |
16 |
227 |
13.6 |
9.73 |
10.57 |
0.84 |
|
|
| Show |
|
32618 |
20 28 53 +56 55 23 |
TOB 187 AC |
2015 |
13 |
132 |
26.9 |
9.73 |
11.34 |
1.61 |
|
|
| Show |
|
32618 |
20 28 53 +56 55 23 |
TOB 187 AD |
2015 |
10 |
189 |
31.2 |
9.73 |
11.80 |
2.07 |
|
<=== |
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
32618 |
|
Tycho2 |
3958-00952-1 |
|
Gaia DR2 |
2187035044058553728 |
|
| HD |
239426 |
|
