GJ 1112

All names: CNS5 2100, Gaia DR2 710766750855439360, LHS 2022, GCRV 21704, USNO-B1.0 1226-00204820, USNO 312, LTT 18061, PSO J127.6638+32.6947, G 51-16, LSPM J0830+3241, WDJ083039.46+324147.23, TIC 172842159, 2MASS J08303949+3241481, KUV 08275+3252, 08306+3241, SDSS J083039.43+324146.1, Gaia DR3 710766750855439360, WIRED J083039.44+324146.1, PLX 2017.01, GJ 1112, WD 0827+328, PM J08306+3241, GEN# +9.80051016, NLTT 19653, Gaia EDR3 710766750855439360, SDSS J083039.44+324146.1, WD 0827+32, EGGR 249, J0830+3241

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 O'Brien et al. 2024 Caron et al. 2023 Kilic et al. 2020 McCleery et al. 2020 Blouin et al. 2019 MWDD H Gaia DR2 Bedard et al. 2017 Stilism Holberg et al. 2016 Limoges et al. 2015 Sion et al. 2014 Giammichele et al. 2012 Gianninas et al. 2011 Tremblay et al. 2011 Bergeron et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 30 39.27 (0.03) 08 30 39.43 08 30 39.28 (0.04) 08 30 39.28 (0.04) 08 30 39.36 08 30 39.27 08 30 39.46 (0.03) 08 30 39.28 08 30 39.44 08 30 39.98 08 30 39.44
Declination 32 41 38.80 (0.03) 32 41 46.10 32 41 39.06 (0.03) 32 41 39.06 (0.03) 32 41 45.60 32 41 38.80 32 41 47.23 (0.03) 32 41 39.06 32 41 46.13 32 42 11.16 32 41 46.11
Spectral type DA DA DA DA DA DA DA DA DA DA DA6.9 DA DA DA DA DA DA6.8 DA DA_auto DA7 DA DA
Effective temperature [K] 7487.0 (26) 7286.0 (54) 7407.0 (19) 7487.0 (26) 7288.9 (26) 7200.0 (50) 7348.0 7268.0 (106) 7210.0 (178) 7270.0 (106) 7490.0 7209.0 (178) 7410.0 (108) 7320.0 (20) 7270.0 (180) 7303.0 (38) 7886.0 (14) 7157.0 (18)
log(g) [cgs] 8.46 (0.006) 8.40 (0.02) 8.44 (0.005) 8.46 (0.006) 8.41 (0.009) 8.39 (0.01) 8.43 8.37 (0.06) 8.31 (0.1) 8.38 (0.06) 8.39 (0.1) 8.43 (0.06) 8.48 (0.03) 8.39 (0.1) 8.41 (0.008) 9.00 (0.002) 8.20 (0.03)
Mass [M] 0.889 (0.005) 0.851 (0.01) 0.878 (0.004) 0.889 (0.006) 0.846 (0.009) 0.868 0.78 (0.2) 0.8 (0.07) 0.83 (0.04) 0.84 (0.07) 0.87 (0.04) 0.9 (0.02) 0.85 (0.07) 0.856 (0.007) 0.711 (0.02)
log(Luminosity) [L] -3.62 -3.64 -3.63 (0.08)
Cooling age [Gyr] 3.3200 3.1430 (0.09) 3.1260 2.7700 3.1000 3.3884 3.0600 (0.6)
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] 44.67 (0.04) 44.67 (0.04) 44.72 (0.06) 44.72 (0.06) 44.72 (0.06) 44.72 (0.06) 44.90 (0.4) 44.90 (4) 44.90 (4) 44.90 (4) 44.67 44.67 (0.04) 44.72 (0.06) 45.40 (4)
Distance [pc] 22.39 (0.02) 22.39 (0.02) 22.36 (0.03) 22.36 (0.03) 22.36 (0.03) 22.36 (0.03) 22.00 (2) 22.27 (0.2) 22.30 (2) 22.27 22.30 (2) 22.00 22.27 (2) 22.39 22.39 (0.02) 22.36 (0.03) 22.03 (2)
Composition H H H H H H H H H H H
Proper motion (right ascension) [mas/yr] -147.7341426 (0.04) -147.8070548 (0.09) -147.734 (0.04) -147.807 -149.1
Proper motion (declination) [mas/yr] -527.0866093 (0.03) -527.1558922 (0.06) -527.087 (0.03) -527.156 -525.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.05 16.05 16.02
V magnitude 15.73 15.73 15.73
R magnitude 15.51 15.51 15.30
I magnitude 15.26 15.26
J magnitude 15.06 (0.006) 14.98 (0.04) 15.01 15.01 14.98 (0.04)
H magnitude 14.96 (0.08) 14.96 (0.08) 14.85 14.85 14.96 (0.08)
K magnitude 14.87 (0.1) 14.87 (0.1) 14.84 14.84 14.87 (0.1)
u magnitude 16.24 (0.006) 16.28 (0.006) 16.24 (0.006) 16.29 (0.006) 16.21 (0.01) 15.80 16.24 (0.01)
g magnitude 15.80 (0.004) 15.81 (0.002) 15.80 (0.004) 15.80 (0.01) 15.80 15.82 (0.01)
r magnitude 15.66 (0.005) 15.69 (0.002) 15.65 (0.004) 15.67 (0.02) 15.66 (0.02)
i magnitude 15.68 (0.005) 15.67 (0.002) 15.64 (0.004) 15.63 (0.02) 15.64 (0.02)
z magnitude 15.69 (0.007) 15.71 (0.003) 15.67 (0.006) 15.68 (0.02) 15.69 (0.02)
G magnitude 15.64 (0.002) 15.65 15.65 15.64 15.64 (0.003) 15.65
BP magnitude 15.80 (0.002) 15.80 15.80
RP magnitude 15.33 (0.002) 15.34 15.34
Pan g magnitude 15.80 (0.002) 15.80 (0.001) 15.81 (0.001)
Pan r magnitude 15.68 (0.002) 15.68 (0.002) 15.69 (0.002)
Pan i magnitude 15.67 (0.004) 15.67 (0.005) 15.67 (0.002)
Pan z magnitude 15.74 (0.007) 15.74 (0.007) 15.71 (0.003)
Pan y magnitude 15.78 (0.009) 15.78 (0.009) 15.76 (0.004)
E(B-V) 0.000

* 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.