SDSS J091639.50+604723.4

All names: Gaia EDR3 1039791172677527680, SDSS J091639.52+604723.24, SDSS J091639.52+604723.2, Gaia DR2 1039791172677527680, GALEX J091639.4+604723, Gaia DR3 1039791172677527680, SDSS J091639.50+604723.4

Parameter Unit Gaia EDR3 SDSS DR12 Gaia DR2 Stilism Kepler et al. 2016 Simbad
Right ascension 09 16 39.49 (0.09) 09 16 39.51 09 16 39.49 (0.1) 09 16 39.52 (0.09)
Declination 60 47 23.10 (0.09) 60 47 23.41 60 47 23.11 (0.2) 60 47 23.39 (0.09)
Spectral type DB+M DB
Effective temperature [K] 15988.0 (65)
log(g) [cgs] 7.92 (0.05)
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 3.76 (0.1) 3.80 (0.2) 3.76 (0.1)
Distance [pc] 266.20 (10) 263.30 (14) 266.21 (10)
Composition
Proper motion (right ascension) [mas/yr] -14.57236591 (0.1) -14.58899848 (0.3) -14.572 (0.1)
Proper motion (declination) [mas/yr] -18.0467764 (0.1) -17.98543426 (0.3) -18.047 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.07 (0.01) 18.10 (0.02) 18.08 (0.01)
g magnitude 18.12 (0.006) 18.15 (0.03) 18.12 (0.006)
r magnitude 18.47 (0.009) 18.44 (0.04) 18.43 (0.009)
i magnitude 18.77 (0.01) 18.76 (0.2) 18.78 (0.01)
z magnitude 19.86 (0.1) 19.82 (0.3) 19.23 (0.06)
G magnitude 18.25 18.29 18.25 (0.004)
BP magnitude
RP magnitude
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.016

* 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.