17340-7808 HJ 4937 AB,C
17h 33m 59.78s -78° 08' 08.1" P.A. 223.00 sep 34.7 mag 9.35,12.84 Sp A4V
Coord 2000 |
17340-7808 |
|
Discov num |
HJ 4937 |
|
Comp |
AB,C |
|
Coord arcsec 2000 |
17 33 59.78 -78 08 08.1 |
|
Date first |
1835 |
|
Date last |
2000 |
|
Obs |
4 |
|
Pa first |
229 |
|
Pa last |
222.9 |
|
P.A. Now (θ) |
222.9° |
|
Sep first |
30.0 |
|
Sep last |
34.67 |
|
Sep. Now (ρ) |
34.67" |
|
Mag pri |
9.35 |
|
Mag sec |
12.84 |
|
delta mag (ΔM) |
3.49 |
|
Spectral class |
A4V (white) |
|
Pri motion ra |
-004 |
|
Sec motion ra |
-001 |
|
Pri motion dec |
-012 |
|
Sec motion dec |
-028 |
|
Notes |
|
|
rPM=0.581
Nature of this double is uncertain.
17340-7808 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 157512 |
257508 |
17 33 60 -78 08 08 |
RST 3093 AB |
1991 |
3 |
246 |
0.4 |
8.85 |
9.52 |
0.67 |
|
|
Show |
|
257508 |
17 33 60 -78 08 08 |
HJ 4937 AB,C |
2000 |
4 |
223 |
34.7 |
9.35 |
12.84 |
3.49 |
|
<=== |
Show |
|
257508 |
17 33 60 -78 08 08 |
DAW 217 AB,D |
2000 |
3 |
185 |
31.8 |
8.47 |
14.80 |
6.33 |
|
|
Quadruple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Apus |
|
SAO |
257508 |
|
Tycho2 |
9448-01415-1 |
|
Gaia DR2 |
5776856494885384448 |
|
HD |
157512 |
|