17557+1830 HDS 2528
17h 55m 44.90s +18° 30' 01.4" P.A. 253.00 sep 18.5 mag 9.36,12.30 Sp K5 dist. 25.04 pc (81.68 l.y.)
Coord 2000 |
17557+1830 |
|
Discov num |
HDS2528 |
|
Comp |
|
|
Coord arcsec 2000 |
17 55 44.90 +18 30 01.4 |
|
Date first |
1900 |
|
Date last |
2016 |
|
Obs |
14 |
|
Pa first |
254 |
|
Pa last |
252.9 |
|
P.A. Now (θ) |
252.9° |
|
Sep first |
19.2 |
|
Sep last |
18.498 |
|
Sep. Now (ρ) |
18.498" |
|
Mag pri |
9.36 |
|
Mag sec |
12.30 |
|
delta mag (ΔM) |
2.94 |
|
Spectral class |
K5 (yellow-orange) |
|
Pri motion ra |
-047 |
|
Sec motion ra |
-047 |
|
Pri motion dec |
-047 |
|
Sec motion dec |
-046 |
|
Notes |
|
|
rPM=0.015 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Hercules |
|
HIP |
87768 |
|
Tycho2 |
1557-01987-1 |
|
Gaia DR2 |
4503423641091793152 |
|
GL |
Gl 698 |
|
BD |
BD+18 3497 |
|
Distance |
25.04 |
|
Distance ly |
81.68 |
|