19579-0904 BU 1475 AB (HD 188938)
19h 57m 53.70s -09° 03' 30.3" P.A. 113.00 sep 10.4 mag 7.77,9.47 Sp K2 dist. 247.52 pc (807.41 l.y.)
| Coord 2000 |
19579-0904 |
|
Discov num |
BU 1475 |
|
Comp |
AB |
|
Coord arcsec 2000 |
19 57 53.70 -09 03 30.3 |
|
| Date first |
1906 |
|
Date last |
2015 |
|
Obs |
19 |
|
| Pa first |
113 |
|
Pa last |
112.8 |
|
P.A. Now (θ) |
112.8° |
|
| Sep first |
10.3 |
|
Sep last |
10.421 |
|
Sep. Now (ρ) |
10.421" |
|
| Mag pri |
7.77 |
|
Mag sec |
9.47 |
|
delta mag (ΔM) |
1.7 |
|
Spectral class |
K2 (yellow-orange) |
|
| Pri motion ra |
-004 |
|
Sec motion ra |
-004 |
|
| Pri motion dec |
-014 |
|
Sec motion dec |
-014 |
|
| Notes |
|
|
Nature of this double is uncertain.
19579-0904 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 188938 |
143951 |
19 57 54 -09 03 30 |
BU 1475 AB |
2015 |
19 |
113 |
10.4 |
7.77 |
9.47 |
1.70 |
|
<=== |
| Show |
|
143951 |
19 57 54 -09 03 30 |
HDO 155 AC |
2015 |
20 |
119 |
115.1 |
7.77 |
8.70 |
0.93 |
|
|
| Show |
|
143953 |
19 58 00 -09 04 27 |
BU 1475 CD |
2015 |
9 |
163 |
4.9 |
8.70 |
11.10 |
2.40 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 188938 |
|
Constellation |
Aquila |
|
SAO |
143951 |
|
HIP |
98246 |
|
| Tycho2 |
5738-01042-1 |
|
Gaia DR2 |
4192181964040123264 |
|
HD |
188938 |
|
BD |
BD-09 5303 |
|
| Distance |
247.52 |
|
Distance ly |
807.41 |
|
