20172+1553 CHE 273 AB
20h 17m 09.78s +15° 52' 21.8" P.A. 94.00 sep 26.8 mag 7.48,13.40 Sp B9 dist. 287.36 pc (937.37 l.y.)
| Coord 2000 |
20172+1553 |
|
Discov num |
CHE 273 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 17 09.78 +15 52 21.8 |
|
| Date first |
1910 |
|
Date last |
2015 |
|
Obs |
7 |
|
| Pa first |
86 |
|
Pa last |
94.4 |
|
P.A. Now (θ) |
94.4° |
|
| Sep first |
28.0 |
|
Sep last |
26.781 |
|
Sep. Now (ρ) |
26.781" |
|
| Mag pri |
7.48 |
|
Mag sec |
13.40 |
|
delta mag (ΔM) |
5.92 |
|
Spectral class |
B9 (blue-white) |
|
| Pri motion ra |
-007 |
|
Sec motion ra |
-001 |
|
| Pri motion dec |
-011 |
|
Sec motion dec |
-053 |
|
| Notes |
N
(See Notes) |
|
rPM=0.8
Nature of this double is uncertain.
20172+1553 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
105926 |
20 17 10 +15 52 22 |
CHE 273 AB |
2015 |
7 |
94 |
26.8 |
7.48 |
13.40 |
5.92 |
|
<=== |
| Show |
|
|
20 17 12 +15 52 20 |
BKO 560 BC |
2008 |
1 |
199 |
1.4 |
13.40 |
15.40 |
2.00 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Delphinus |
|
SAO |
105926 |
|
HIP |
99995 |
|
Tycho2 |
1631-00005-1 |
|
| Gaia DR2 |
1808447386454770304 |
|
HD |
192954 |
|
GC |
28188 |
|
BD |
BD+15 4120 |
|
| Distance |
287.36 |
|
Distance ly |
937.37 |
|