PG 1725+245

All names: USNO-B1.0 1144-00258962, Gaia EDR3 4569821602102133632, Gaia DR3 4569821602102133632, GALEX J172733.2+242633, PG1725+245, PG 1725+245, Gaia DR2 4569821602102133632

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 17 27 33.22 (0.03) 17 27 33.22 17 27 33.22 (0.03)
Declination 24 26 33.10 (0.04) 24 26 33.96 24 26 33.27 (0.04)
Spectral type sdO sdOA
Effective temperature [K]
log(g) [cgs]
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.51 (0.05) 0.59 (0.06) 0.51 (0.05)
Distance [pc] 1971.61 (175) 1682.94 (169) 1971.61 (175)
Composition
Proper motion (right ascension) [mas/yr] -0.612 (0.04) -0.705 (0.07) -0.612 (0.04)
Proper motion (declination) [mas/yr] -10.932 (0.04) -10.998 (0.09) -10.932 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.40
V magnitude
R magnitude 16.80
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 16.44 (0.003) 16.47 (0.001) 16.44 (0.003)
BP magnitude 16.32 (0.004) 16.25 (0.007)
RP magnitude 16.68 (0.006) 16.69 (0.004)
Pan g magnitude 16.28 (0.003)
Pan r magnitude 16.68 (0.004)
Pan i magnitude 17.02 (0.003)
Pan z magnitude 17.29 (0.008)
Pan y magnitude 17.47 (0.009)
E(B-V) 0.042

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.