Coord 2000 | 15403+3019 | Discov num | BRT 253 | Comp | Coord arcsec 2000 | 15 40 16.99 +30 18 47.6 | |||||
Date first | 1902 | Date last | 2015 | Obs | 12 | ||||||
Pa first | 266 | Pa last | 268.2 | P.A. Now (θ) | 268.2° | ||||||
Sep first | 4.5 | Sep last | 5.445 | Sep. Now (ρ) | 5.445" | ||||||
Mag pri | 10.09 | Mag sec | 11.31 | delta mag (ΔM) | 1.22 | Spectral class | |||||
Pri motion ra | -015 | Sec motion ra | -015 | ||||||||
Pri motion dec | -001 | Sec motion dec | -002 | ||||||||
Notes | V (Proper motion indicates physical) |
Constellation | Corona Borealis | Tycho2 | 2571-01300-1 | Gaia DR2 | 1273264156075364736 |