WD 0927+388

All names: Gaia EDR3 811434362914841216, TIC 16815006, GALEX J093019.0+384041, KUV 09272+3854, WISEA J093019.00+384041.1, 2MASS J09301904+3840418, Gaia DR2 811434362914841216, WISE J093019.00+384041.6, Gaia DR3 811434362914841216, USNO-B1.0 1286-00196241, WD 0927+388

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Gaia DR2 Stilism Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 09 30 19.02 (0.07) 09 30 19.02 (0.09) 09 30 19.02 (0.07) 09 30 18.65
Declination 38 40 41.19 (0.06) 38 40 41.19 (0.08) 38 40 41.20 (0.06) 38 40 42.24
Spectral type sdB DA
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] 0.25 (0.08) 0.38 (0.1) 0.25 (0.08)
Distance [pc] 3942.67 (1292) 2639.22 (915) 3943.22 (1292)
Composition
Proper motion (right ascension) [mas/yr] -0.948486309 (0.07) -0.885 (0.2) -0.948 (0.07)
Proper motion (declination) [mas/yr] -1.122813079 (0.06) -1.292 (0.1) -1.123 (0.06)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.20
V magnitude 17.53
R magnitude 17.00
I magnitude
J magnitude 16.55 (0.1)
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 17.29 (0.005) 17.31 17.29 (0.003)
BP magnitude 17.41 (0.005) 17.42
RP magnitude 17.08 (0.008) 17.07
Pan g magnitude 17.36 (0.005)
Pan r magnitude 17.34 (0.003)
Pan i magnitude 17.41 (0.003)
Pan z magnitude 17.51 (0.003)
Pan y magnitude 17.52 (0.009)
E(B-V) 0.019

* 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.