SDSS J074756.70+152741.3

All names: Gaia DR3 3164882549120192000, Gaia EDR3 3164882549120192000, SDSS J074756.70+152741.3, GALEX J074756.7+152741, SDSS J074756.69+152741.4, SDSS J074756.70+152741.35, Gaia DR2 3164882549120192000

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 07 47 56.69 (0.3) 07 47 56.70 07 47 56.69 (0.4) 07 47 56.70 (0.3)
Declination 15 27 41.28 (0.3) 15 27 41.42 15 27 41.29 (0.4) 15 27 41.51 (0.3)
Spectral type DC DC DC DC DA
Effective temperature [K] 10156.0 10373.0 10354.0 (540)
log(g) [cgs] 7.83 7.78 8.41 (0.8)
Mass [M] 0.505 0.461
log(Luminosity) [L]
Cooling age [Gyr] 0.4695 0.4283
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 3.01 (0.4) 3.18 (0.5) 3.01 (0.4)
Distance [pc] 331.89 (43) 314.96 (48) 331.88 (43)
Composition
Proper motion (right ascension) [mas/yr] -9.31268955 (0.4) -9.830655357 (0.8) -9.313 (0.4)
Proper motion (declination) [mas/yr] -14.60002858 (0.3) -13.89508052 (0.6) -14.6 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.46 (0.03) 19.46 (0.03) 19.45 (0.03)
g magnitude 19.39 (0.01) 19.39 (0.01) 19.39 (0.01)
r magnitude 19.58 (0.02) 19.58 (0.02) 19.58 (0.02)
i magnitude 19.75 (0.02) 19.75 (0.02) 19.75 (0.02)
z magnitude 19.82 (0.07) 19.82 (0.07) 19.82 (0.07)
G magnitude 19.37 (0.06) 19.44 19.37 (0.005)
BP magnitude 19.43 (0.06) 19.37
RP magnitude 19.34 (0.09) 19.18
Pan g magnitude 19.36 (0.02)
Pan r magnitude 19.44 (0.007)
Pan i magnitude 19.62 (0.01)
Pan z magnitude 19.77 (0.01)
Pan y magnitude 19.91 (0.07)
E(B-V) 0.015

* 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.