18422+8818 HJ 2971 AC
18h 42m 13.39s +88° 18' 10.9" P.A. 66.00 sep 28.5 mag 9.93,11.53 Sp K8
| Coord 2000 |
18422+8818 |
|
Discov num |
HJ 2971 |
|
Comp |
AC |
|
Coord arcsec 2000 |
18 42 13.39 +88 18 10.9 |
|
| Date first |
1966 |
|
Date last |
2015 |
|
Obs |
14 |
|
| Pa first |
60 |
|
Pa last |
65.9 |
|
P.A. Now (θ) |
65.9° |
|
| Sep first |
25.0 |
|
Sep last |
28.485 |
|
Sep. Now (ρ) |
28.485" |
|
| Mag pri |
9.93 |
|
Mag sec |
11.53 |
|
delta mag (ΔM) |
1.6 |
|
Spectral class |
K8 (yellow-orange) |
|
| Pri motion ra |
-093 |
|
Sec motion ra |
-003 |
|
| Pri motion dec |
+146 |
|
Sec motion dec |
+001 |
|
| Notes |
|
|
rPM=0.986
This double is not physical.
18422+8818 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
18 42 13 +88 18 11 |
HJ 2971 AB |
2015 |
7 |
163 |
50.5 |
9.93 |
12.61 |
2.68 |
|
|
| Show |
|
|
18 42 13 +88 18 11 |
HJ 2971 AC |
2015 |
14 |
66 |
28.5 |
9.93 |
11.53 |
1.60 |
|
<=== |
| Show |
|
|
18 42 43 +88 17 25 |
HJ 2971 BC |
2015 |
7 |
11 |
61.0 |
12.61 |
11.53 |
1.08 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Ursa Minor |
|
Tycho2 |
4660-00194-1 |
|
Gaia DR2 |
2305262196492623360 |
|
