GALEX J122731.0+164236

All names: Gaia DR2 3945846790536196736, SDSSJ122730.97+164235.8, GALEX J122731.0+164236, SDSS J122730.97+164235.8, SDSS J122730.97+164235.9, Gaia DR3 3945846790536196736

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 12 27 30.98 12 27 30.98 (0.3)
Declination 16 42 35.89 16 42 35.99 (0.2)
Spectral type sdB sdB
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] 0.45 (0.5) 0.27 (0.3)
Distance [pc] 2207.51 (2220) 3675.12 (4115)
Composition
Proper motion (right ascension) [mas/yr] -3.844 (0.7) -3.367 (0.3)
Proper motion (declination) [mas/yr] -4.679 (0.4) -4.377 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.68 (0.02) 18.68 (0.02)
g magnitude 18.88 (0.009) 18.88 (0.009)
r magnitude 19.38 (0.01) 19.38 (0.01)
i magnitude 19.66 (0.02) 19.66 (0.02)
z magnitude 20.02 (0.1) 19.88 (0.09)
G magnitude 19.20 (0.003) 19.17 (0.004)
BP magnitude 19.01 (0.02)
RP magnitude 19.47 (0.07)
Pan g magnitude 19.00 (0.009)
Pan r magnitude 19.38 (0.009)
Pan i magnitude 19.74 (0.02)
Pan z magnitude 19.91 (0.07)
Pan y magnitude 20.03 (0.08)
E(B-V) 0.022

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit




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.