SDSS J183816.49+403055.1

All names: SDSS J183816.49+403055.1, TIC 157649800, WISEA J183816.46+403055.7, WISE J183816.46+403055.6, 2MASS J18381646+4030548, Gaia DR3 2110146054188327168, SDSS J183816.48+403055.0

Parameter Unit Pan-STARRS DR1 SDSS DR12 Simbad Kleinman et al. 2013
Right ascension 18 38 16.49 18 38 16.49 (2) 18 38 16.49
Declination 40 30 55.08 40 30 55.17 (2) 40 30 55.08
Spectral type DA+M DA+M
Effective temperature [K] 6300.0 (3)
log(g) [cgs] 10.00 (0.006)
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas]
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr]
Proper motion (declination) [mas/yr]
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 16.74 (0.2)
H magnitude 15.97 (0.2)
K magnitude 15.44 (0.2)
u magnitude 21.16 (0.08) 21.16 (0.08) 21.17 (0.09)
g magnitude 20.55 (0.02) 20.55 (0.02) 20.52 (0.02)
r magnitude 20.16 (0.02) 20.16 (0.02) 20.13 (0.02)
i magnitude 19.01 (0.01) 19.01 (0.01) 18.99 (0.02)
z magnitude 18.23 (0.02) 18.23 (0.03) 18.21 (0.02)
G magnitude 19.90 (0.02)
BP magnitude
RP magnitude
Pan g magnitude 20.53 (0.03)
Pan r magnitude 20.13 (0.01)
Pan i magnitude 19.03 (0.006)
Pan z magnitude 18.35 (0.01)
Pan y magnitude 18.05 (0.02)
E(B-V)

* 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.