GD 165

All names: USNO-B1.0 0992-00238920, ** ZUC 12A, WDJ142439.15+091714.16, 14246+0917, EGGR 222, PLX 3269.01, GALEX J142439.1+091712, Gaia DR2 1176717792385803136, TIC 421809466, NLTT 37242, LSPM J1424+0917, V* CX Boo, PM J14246+0917, Gaia EDR3 1176717792385803136, WDS J14247+0917A, SDSS J142439.10+091713.6, GEN# +6.10060165, WD 1422+09, GD 165A, Gaia DR3 1176717792385803136, 2MASS J14243914+0917139, SDSS J142439.10+091713.7, J1424+0917, GD 165, L 1124-10, LP 500-17, 1SWASP J142439.16+091714.2, BPS CS 22883-0042, uvby98 610060165, WD 1422+095, PG 1422+095, LTT 14236, WD1422+095

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Kilic et al. 2020 McCleery et al. 2020 MWDD H Gaia DR2 Bedard et al. 2017 Stilism Giammichele et al. 2015 Limoges et al. 2015 Gianninas et al. 2011 Koester et al. 2009 Liebert et al. 2005 Koester et al. 2001 Bergeron et al. 1993 Bergeron & McGraw 1990 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Research Corporation White Dwarf Catalog (McCook & Sion 1999)
Right ascension 14 24 38.92 (0.03) 14 24 38.93 (0.05) 14 24 38.93 (0.05) 14 24 39.20 14 24 38.92 14 24 39.15 (0.03) 14 24 38.93 14 24 39.29
Declination 09 17 11.77 (0.02) 09 17 11.84 (0.04) 09 17 11.84 (0.04) 09 17 13.00 09 17 11.77 09 17 14.16 (0.02) 09 17 11.84 09 17 21.84
Spectral type DA DA DA DA DA DA DA DA DA DA4.1 DAV DA4
Effective temperature [K] 12392.0 (195) 11908.0 (76) 12314.3 (83) 8190.0 12227.0 (186) 12220.0 12760.0 (197) 12440.0 (191) 12525.0 (21) 11980.0 (178) 12700.0 (38) 12220.0 12220.0 12222.0 (109) 11980.0
log(g) [cgs] 8.06 (0.02) 8.02 (0.006) 8.06 (0.01) 7.43 8.08 (0.05) 8.11 8.05 (0.05) 8.14 (0.05) 7.92 (0.007) 8.06 (0.05) 7.95 (0.02) 8.11 8.11 8.05 (0.007) 8.06
Mass [M☉] 0.643 (0.01) 0.615 (0.005) 0.323 0.61 (0.1) 0.64 (0.03) 0.69 (0.03) 0.64 (0.03) 0.58 0.634 (0.005)
log(Luminosity) [L☉] -2.43 -2.55
Cooling age [Gyr] 0.5629 0.4677
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] 29.99 (0.03) 29.99 (0.03) 29.93 (0.06) 29.93 (0.06) 29.99 29.99 (0.03) 29.93 (0.06) 31.70
Distance [pc] 33.34 (0.03) 33.34 (0.03) 33.41 (0.06) 33.41 (0.06) 31.50 (2) 38.60 (1) 32.00 33.00 33.34 33.34 (0.03) 33.41 (0.06) 31.55
Composition H H H H
Proper motion (right ascension) [mas/yr] -213.4358247 (0.03) -213.3533986 (0.08) -213.436 (0.03) -213.3533986
Proper motion (declination) [mas/yr] -149.6167354 (0.03) -149.6483745 (0.07) -149.617 (0.03) -149.6483745
Variability VAR VAR VAR VAR VAR
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.46
V magnitude 14.30 14.32 14.32 14.32 14.30 14.30 14.32 14.32
R magnitude 14.60
I magnitude 14.91 (0.01)
J magnitude 14.53 (0.06)
H magnitude 14.50 (0.1)
K magnitude 14.61 (0.1)
u magnitude 15.03 (0.006) 15.03 (0.006) 15.03
g magnitude 14.81 (0.005) 14.81 (0.005) 14.86
r magnitude 14.59 (0.003) 14.59 (0.003) 14.58
i magnitude 14.91 (0.006) 14.91 (0.006) 14.93
z magnitude 14.89 (0.006) 14.89 (0.006) 14.91
G magnitude 14.34 (0.003) 14.36 14.36 14.34 14.34 (0.003) 14.36
BP magnitude 14.34 (0.003) 14.34 14.34
RP magnitude 14.37 (0.002) 14.38 14.38
Pan g magnitude 14.28 (0.006)
Pan r magnitude 14.46 (0.002)
Pan i magnitude 14.68 (0.003)
Pan z magnitude 14.88 (0.002)
Pan y magnitude 15.03 (0.004)
E(B-V) 0.001
Period #1 [s] 114.2 107.7 120.0
Amplitude #1 [mma] 0.4 0.4
Period #2 [s] 114.4 114.3 193.0
Amplitude #2 [mma] 0.2 0.6
Period #3 [s] 120.3 120.4 240.0
Amplitude #3 [mma] 1.1 6.1
Period #4 [s] 120.4 146.4 649.0
Amplitude #4 [mma] 5.1 0.5
Period #5 [s] 120.4 166.2 775.0
Amplitude #5 [mma] 1.6 0.4
Period #6 [s] 146.3 192.7 870.0
Amplitude #6 [mma] 0.4 4.8
Period #7 [s] 146.4 249.7 1316.0
Amplitude #7 [mma] 0.2 0.7
Period #8 [s] 168.2 321.2 1820.0
Amplitude #8 [mma] 0.3 0.5
Period #9 [s] 192.6
Amplitude #9 [mma] 2.3
Period #10 [s] 192.7
Amplitude #10 [mma] 2.3
Period #11 [s] 192.8
Amplitude #11 [mma] 0.6
Period #12 [s] 250.2
Amplitude #12 [mma] 0.6
Period #13 [s] 250.3
Amplitude #13 [mma] 0.2

* Constant surface field

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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.