20506+3055 BU 67 AB (HD 198626)
20h 50m 36.05s +30° 54' 45.7" P.A. 311.00 sep 1.5 mag 6.85,9.87 Sp A8III dist. 120.05 pc (391.6 l.y.)
| Coord 2000 |
20506+3055 |
|
Discov num |
BU 67 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 50 36.05 +30 54 45.7 |
|
| Date first |
1871 |
|
Date last |
2016 |
|
Obs |
36 |
|
| Pa first |
290 |
|
Pa last |
310.9 |
|
P.A. Now (θ) |
310.9° |
|
| Sep first |
1.3 |
|
Sep last |
1.533 |
|
Sep. Now (ρ) |
1.533" |
|
| Mag pri |
6.85 |
|
Mag sec |
9.87 |
|
delta mag (ΔM) |
3.02 |
|
Spectral class |
A8III (white) |
|
| Pri motion ra |
+061 |
|
Sec motion ra |
+058 |
|
| Pri motion dec |
+035 |
|
Sec motion dec |
+036 |
|
| Notes |
|
|
rPM=0.045 (< 0.3, Physical double)
This double is physical.
20506+3055 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
70564 |
20 50 36 +30 54 46 |
GII 293 Aa,Ab |
2013 |
1 |
137 |
0.1 |
7.60 |
7.60 |
0.00 |
|
|
| Show |
HD 198626 |
70564 |
20 50 36 +30 54 46 |
BU 67 AB |
2016 |
36 |
311 |
1.5 |
6.85 |
9.87 |
3.02 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 198626 |
|
Constellation |
Cygnus |
|
SAO |
70564 |
|
HIP |
102876 |
|
| Tycho2 |
2687-01371-1 |
|
HD |
198626 |
|
GC |
29071 |
|
BD |
BD+30 4199 |
|
| Distance |
120.05 |
|
Distance ly |
391.6 |
|
