18422+8818 HJ 2971 BC
18h 42m 43.08s +88° 17' 24.8" P.A. 11.00 sep 61.0 mag 12.61,11.53
Coord 2000 |
18422+8818 |
|
Discov num |
HJ 2971 |
|
Comp |
BC |
|
Coord arcsec 2000 |
18 42 43.08 +88 17 24.8 |
|
Date first |
2000 |
|
Date last |
2015 |
|
Obs |
7 |
|
Pa first |
11 |
|
Pa last |
10.9 |
|
P.A. Now (θ) |
10.9° |
|
Sep first |
61.0 |
|
Sep last |
61.04 |
|
Sep. Now (ρ) |
61.04" |
|
Mag pri |
12.61 |
|
Mag sec |
11.53 |
|
delta mag (ΔM) |
1.08 |
|
Spectral class |
|
|
Pri motion ra |
-005 |
|
Sec motion ra |
-003 |
|
Pri motion dec |
+002 |
|
Sec motion dec |
+001 |
|
Notes |
|
|
rPM=0.415
Nature of this double is uncertain.
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 |
|
Gaia DR2 |
2305262192196337024 |
|