17374+5040 ES 2661 BC
17h 37m 31.07s +50° 39' 54.2" P.A. 18.00 sep 14.9 mag 9.84,12.80
Coord 2000 |
17374+5040 |
|
Discov num |
ES 2661 |
|
Comp |
BC |
|
Coord arcsec 2000 |
17 37 31.07 +50 39 54.2 |
|
Date first |
1909 |
|
Date last |
2015 |
|
Obs |
14 |
|
Pa first |
28 |
|
Pa last |
17.6 |
|
P.A. Now (θ) |
17.6° |
|
Sep first |
13.5 |
|
Sep last |
14.92 |
|
Sep. Now (ρ) |
14.92" |
|
Mag pri |
9.84 |
|
Mag sec |
12.80 |
|
delta mag (ΔM) |
2.96 |
|
Spectral class |
|
|
Pri motion ra |
+011 |
|
Sec motion ra |
|
|
Pri motion dec |
-022 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
17374+5040 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 160469 |
30486 |
17 37 25 +50 40 07 |
ES 2661 AB |
2017 |
18 |
102 |
58.3 |
8.46 |
9.84 |
1.38 |
|
|
Show |
|
|
17 37 31 +50 39 54 |
ES 2661 BC |
2015 |
14 |
18 |
14.9 |
9.84 |
12.80 |
2.96 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Draco |
|
Tycho2 |
3522-01544-1 |
|
Gaia DR2 |
1368077002243567232 |
|