Coord 2000 | 17551+3135 |
Discov num | ITF 21 |
Comp | Coord arcsec 2000 | 17 55 06.54 +31 34 31.1 |
|||||
Date first | 1952 |
Date last | 2015 |
Obs | 6 |
||||||
Pa first | 310 |
Pa last | 313 |
P.A. Now (θ) | 313° |
||||||
Sep first | 5.1 |
Sep last | 5.4 |
Sep. Now (ρ) | 5.4" |
||||||
Mag pri | 17.50 |
Mag sec | 19.00 |
delta mag (ΔM) | 1.5 |
Spectral class | K4V+K7V (yellow-orange/yellow-orange) |
||||
Pri motion ra | +009 |
Sec motion ra | +009 |
||||||||
Pri motion dec | -015 |
Sec motion dec | -015 |
||||||||
Notes | V
(Proper motion indicates physical) |
Precise pa | 312.5 |
Precise sep | 5.442 |
Constellation | Hercules |
SAO | 66463 |
||||
Tycho2 | 2608-00792-1 |
Gaia DR2 | 4603813519471105280 |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
17551+3135 | ITF 21 | 1998 | 2 | 310 | 5.6 | 17.50 | 19.00 | K4V+K7V | V | 175507.18+313336.8 | |
17551+3135 | ITF 21 | 2015 | 3 | 313 | 5.4 | 17.50 | 19.00 | K4V+K7V | V | 175506.54+313431.1 |