20472+4225 BOT 4 AC
20h 47m 09.92s +42° 24' 35.4" P.A. 16.00 sep 104.9 mag 7.43,9.94 Sp B7V dist. 353.36 pc (1152.66 l.y.)
| Coord 2000 |
20472+4225 |
|
Discov num |
BOT 4 |
|
Comp |
AC |
|
Coord arcsec 2000 |
20 47 09.92 +42 24 35.4 |
|
| Date first |
1892 |
|
Date last |
2018 |
|
Obs |
14 |
|
| Pa first |
16 |
|
Pa last |
16.1 |
|
P.A. Now (θ) |
16.1° |
|
| Sep first |
105.7 |
|
Sep last |
104.853 |
|
Sep. Now (ρ) |
104.853" |
|
| Mag pri |
7.43 |
|
Mag sec |
9.94 |
|
delta mag (ΔM) |
2.51 |
|
Spectral class |
B7V (blue-white) |
|
| Pri motion ra |
+005 |
|
Sec motion ra |
+006 |
|
| Pri motion dec |
-001 |
|
Sec motion dec |
-001 |
|
| Notes |
|
|
rPM=0.164 (< 0.3, Physical double)
This double is physical.
20472+4225 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 198195 |
50055 |
20 47 10 +42 24 35 |
STT 414 AB |
2018 |
48 |
95 |
9.9 |
7.43 |
8.93 |
1.50 |
|
|
| Show |
|
50055 |
20 47 10 +42 24 35 |
BOT 4 AC |
2018 |
14 |
16 |
104.9 |
7.43 |
9.94 |
2.51 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
50055 |
|
HIP |
102570 |
|
Tycho2 |
3174-00786-1 |
|
| Gaia DR2 |
2066664771658133120 |
|
HD |
198195 |
|
BD |
BD+41 3884 |
|
Distance |
353.36 |
|
| Distance ly |
1152.66 |
|
