GD 1400

All names: PHL 1159, Gaia DR2 5135466183642594304, WD 0145-221, MCT 0145-2211, WISEA J014721.86-215651.6, Gaia DR3 5135466183642594304, V* HK Cet, 0145-221, TIC 164772507, WD0145-221, EC 01450-2211, 2MASS J01472183-2156512, WISE J014721.85-215651.5, UCAC4 341-001978, GD 1400B, WDJ014721.82-215651.39, GALEX J014721.8-215651, Gaia EDR3 5135466183642594304, GD 1400

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Bergeron et al. 2021 Leggett et al. 2018 Gaia DR2 Stilism Gianninas et al. 2011 Koester et al. 2009 Fontaine et al. 2003 Koester et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Research Corporation White Dwarf Catalog (McCook & Sion 1999)
Right ascension 01 47 21.90 (0.02) 01 47 21.90 (0.03) 01 47 21.80 01 47 21.90 01 47 21.82 (0.02) 01 47 21.90 01 47 21.65
Declination -21 56 51.78 (0.02) -21 56 51.76 (0.03) -21 56 51.00 -21 56 51.78 -21 56 51.39 (0.02) -21 56 51.76 -21 56 45.24
Spectral type DA DA DA DA DA4.1 DAV DA3
Effective temperature [K] 11386.0 (263) 12150.0 (180) 11747.0 (20) 11850.0 11620.0 (27) 10836.0 (58) 11550.0
log(g) [cgs] 8.17 (0.1) 8.21 (0.05) 8.07 (0.007) 8.15 8.07 (0.02) 7.97 (0.007) 8.14
Mass [M] 0.709 (0.06) 0.74 (0.03) 0.65 0.584 (0.006)
log(Luminosity) [L]
Cooling age [Gyr] 0.5730
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 21.62 (0.03) 22.41 (0.7) 21.69 (0.05) 21.62 21.62 (0.03) 21.69 (0.05)
Distance [pc] 46.25 (0.07) 46.00 44.62 (1) 46.10 (0.1) 47.00 46.25 46.25 (0.07) 46.10 (0.1)
Composition H H
Proper motion (right ascension) [mas/yr] 67.32140372 (0.03) 67.31789624 (0.08) 67.321 (0.03) 67.31789624
Proper motion (declination) [mas/yr] -24.38755661 (0.02) -24.36769963 (0.05) -24.388 (0.02) -24.36769963
Variability VAR VAR VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.30 15.38 (0.05)
V magnitude 15.30 14.90 15.15 (0.07) 15.40
R magnitude 15.42 (0.06)
I magnitude
J magnitude 14.92 (0.03)
H magnitude 14.45 (0.04)
K magnitude 14.34 (0.06)
u magnitude
g magnitude 15.16 (0.08)
r magnitude
i magnitude 15.56 (0.03)
z magnitude
G magnitude 15.21 (0.005) 15.23 15.21 15.21 (0.003) 15.23
BP magnitude 15.23 (0.005) 15.23 15.23
RP magnitude 15.18 (0.004) 15.18 15.18
Pan g magnitude 15.16 (0.01)
Pan r magnitude 15.30 (0.008)
Pan i magnitude 15.48 (0.01)
Pan z magnitude 15.67 (0.008)
Pan y magnitude 15.74 (0.006)
E(B-V) 0.000
Period #1 [s] 462.2
Amplitude #1 [mma] 25
Period #2 [s] 727.9
Amplitude #2 [mma] 19.0
Period #3 [s] 823.2
Amplitude #3 [mma] 17.0

* 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.