20419+2043 BU 673 AB (HD 197228)
20h 41m 51.69s +20° 42' 51.0" P.A. 292.00 sep 3.9 mag 7.46,11.90 Sp A7II-III dist. 100.1 pc (326.53 l.y.)
| Coord 2000 |
20419+2043 |
|
Discov num |
BU 673 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 41 51.69 +20 42 51.0 |
|
| Date first |
1878 |
|
Date last |
2016 |
|
Obs |
14 |
|
| Pa first |
298 |
|
Pa last |
292.4 |
|
P.A. Now (θ) |
292.4° |
|
| Sep first |
4.1 |
|
Sep last |
3.852 |
|
Sep. Now (ρ) |
3.852" |
|
| Mag pri |
7.46 |
|
Mag sec |
11.90 |
|
delta mag (ΔM) |
4.44 |
|
Spectral class |
A7II-III (white) |
|
| Pri motion ra |
-006 |
|
Sec motion ra |
|
|
| Pri motion dec |
-050 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
20419+2043 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 197228 |
89019 |
20 41 52 +20 42 51 |
BU 673 AB |
2016 |
14 |
292 |
3.9 |
7.46 |
11.90 |
4.44 |
|
<=== |
| Show |
|
89019 |
20 41 52 +20 42 51 |
BU 673 AC |
2016 |
22 |
163 |
102.6 |
7.46 |
8.07 |
0.61 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 197228 |
|
Constellation |
Vulpecula |
|
SAO |
89019 |
|
HIP |
102144 |
|
| Tycho2 |
1646-00492-1 |
|
Gaia DR2 |
1817392669456206208 |
|
HD |
197228 |
|
BD |
BD+20 4680 |
|
| Distance |
100.1 |
|
Distance ly |
326.53 |
|
