SDSS J121710.80+361646.6

All names: Gaia DR2 4029485579203863040, Gaia EDR3 4029485579203863040, SDSS J121710.80+361646.6, GALEX J121710.8+361647

Parameter Unit Gaia EDR3 SDSS DR12 Gaia DR2 Stilism Simbad Kleinman et al. 2013
Right ascension 12 17 10.77 (0.6) 12 17 10.80 12 17 10.77 (0.5) 12 17 10.80 12 17 10.80
Declination 36 16 46.31 (0.7) 36 16 46.57 36 16 46.33 (0.6) 36 16 46.59 36 16 46.59
Spectral type DC DC
Effective temperature [K] 6973.0 (60)
log(g) [cgs] 9.99 (0.02)
Mass [M]
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 6.37 (0.8) 5.21 (0.8)
Distance [pc] 156.87 (20) 191.83 (28)
Composition
Proper motion (right ascension) [mas/yr] -12.60733286 (0.5) -12.72935896 (0.8)
Proper motion (declination) [mas/yr] -46.30201486 (0.8) -47.80009359 (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 19.44 (0.03) 19.58 (0.03) 19.58 (0.03)
g magnitude 19.02 (0.01) 19.18 (0.02) 19.18 (0.02)
r magnitude 18.87 (0.01) 19.04 (0.02) 19.04 (0.02)
i magnitude 18.84 (0.01) 19.05 (0.02) 19.05 (0.02)
z magnitude 18.72 (0.05) 18.86 (0.04) 18.86 (0.04)
G magnitude 19.43 (0.04) 19.46
BP magnitude 19.13 (0.04) 19.14
RP magnitude 18.61 (0.04) 18.61
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.006

* 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.