17452+5157 STF 2225 AB (HD 161865)
17h 45m 10.07s +51° 56' 55.9" P.A. 339.00 sep 5.5 mag 9.00,11.90 Sp K2
| Coord 2000 |
17452+5157 |
|
Discov num |
STF2225 |
|
Comp |
AB |
|
Coord arcsec 2000 |
17 45 10.07 +51 56 55.9 |
|
| Date first |
1868 |
|
Date last |
2015 |
|
Obs |
21 |
|
| Pa first |
343 |
|
Pa last |
338.6 |
|
P.A. Now (θ) |
338.6° |
|
| Sep first |
4.8 |
|
Sep last |
5.477 |
|
Sep. Now (ρ) |
5.477" |
|
| Mag pri |
9.00 |
|
Mag sec |
11.90 |
|
delta mag (ΔM) |
2.9 |
|
Spectral class |
K2 (yellow-orange) |
|
| Pri motion ra |
+000 |
|
Sec motion ra |
-019 |
|
| Pri motion dec |
+019 |
|
Sec motion dec |
+043 |
|
| Notes |
|
|
rPM=0.651
Nature of this double is uncertain.
17452+5157 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 161865 |
30551 |
17 45 10 +51 56 56 |
STF 2225 AB |
2015 |
21 |
339 |
5.5 |
9.00 |
11.90 |
2.90 |
|
<=== |
| Show |
|
30551 |
17 45 10 +51 56 56 |
STF 2225 AC |
2015 |
22 |
245 |
230.2 |
9.00 |
10.20 |
1.20 |
|
|
| Show |
|
|
17 44 48 +51 55 17 |
STF 2225 CD |
2017 |
43 |
296 |
8.7 |
10.20 |
10.56 |
0.36 |
|
|
| Show |
|
|
17 44 48 +51 55 17 |
B 9005 CE |
2015 |
9 |
302 |
65.1 |
10.20 |
13.02 |
2.82 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 161865 |
|
Constellation |
Draco |
|
SAO |
30551 |
|
Tycho2 |
3522-00884-1 |
|
| Gaia DR2 |
1368436817423662720 |
|
HD |
161865 |
|
GC |
24123 |
|
