GJ 4365

All names: SDSS J234954.98+293359.1, PM J23499+2934, Gaia EDR3 2867032958053059200, WD 2347+29, G 130-15, EGGR 506, J2349+2933, WD 2347+292, Gaia DR3 2867032958053059200, CNS5 5875, LHS 4019, WDJ234955.03+293404.02, NLTT 58110, 2MASS J23495503+2934046, TIC 129633313, PLX 5764.11, Gaia DR2 2867032958053059200, G130-15, PSO J357.4790+29.5661, GJ 4365, LSPM J2349+2934, WISEA J234954.97+293358.5, 23499+2934, USNO 687

Parameter Unit Gaia EDR3 Pan-STARRS DR1 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 Stilism Holberg et al. 2016 Limoges et al. 2015 Sion et al. 2014 Giammichele et al. 2012 Gianninas et al. 2011 Zuckerman et al. 2003 Bergeron et al. 2001 Bergeron et al. 1997 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 23 49 54.96 (0.02) 23 49 54.96 (0.03) 23 49 54.96 (0.03) 23 49 54.96 23 49 54.96 23 49 55.03 (0.02) 23 49 54.96 23 49 54.91
Declination 29 33 56.00 (0.02) 29 33 56.25 (0.02) 29 33 56.25 (0.02) 29 34 01.20 29 33 56.00 29 34 04.02 (0.02) 29 33 56.25 29 34 22.80
Spectral type DA DA DA DA DA DA DA DA DA DA9 DA DA DA DA DA DA8.5 DA8
Effective temperature [K] 5903.0 (11) 5813.0 (28) 5898.0 (23) 5917.0 (17) 5804.8 (13) 5790.0 (25) 5803.0 5805.0 (110) 5850.0 (143) 5810.0 5805.0 (110) 5900.0 (232) 5849.0 5810.0 (120) 5810.0 (120) 5966.0 (16)
log(g) [cgs] 7.92 (0.004) 7.86 (0.02) 7.92 (0.006) 7.93 (0.006) 7.86 (0.009) 7.86 (0.01) 7.88 7.83 (0.1) 7.86 (0.1) 7.83 (0.1) 7.80 (0.6) 7.82 7.82 (0.1) 7.82 (0.1) 7.94 (0.005)
Mass [M] 0.537 (0.004) 0.507 (0.01) 0.539 (0.006) 0.547 (0.004) 0.508 (0.008) 0.516 0.5 (0.08) 0.51 (0.08) 0.49 (0.08) 0.48 (0.3) 0.48 (0.08) 0.49 (0.08) 0.55 (0.005)
log(Luminosity) [L] -3.69 -3.69 -3.69 (0.08) -3.69 (0.08)
Cooling age [Gyr] 2.1600 2.0230 (0.05) 2.0480 2.1700 1.9300 1.8900 (0.4) 2.0300 (0.4)
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) <-11.817
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] 47.74 (0.03) 47.74 (0.03) 47.74 (0.05) 47.74 (0.05) 47.74 (0.05) 47.74 (0.05) 44.65 (4) 46.50 (4) 46.50 (4) 46.50 (4) 46.50 (4) 47.74 47.74 (0.03) 47.74 (0.05) 47.00 (4)
Distance [pc] 20.95 (0.01) 20.95 (0.01) 20.95 (0.02) 20.95 (0.02) 20.95 (0.02) 20.95 (0.02) 22.40 (2) 21.50 (3) 22.39 21.50 (2) 21.00 21.51 (2) 21.51 (2) 20.95 20.95 (0.01) 20.95 (0.02) 21.28 (2)
Composition H H H H H H H H H H H
Proper motion (right ascension) [mas/yr] -54.91263626 (0.03) -54.945158 (0.06) -54.913 (0.03) -54.945158
Proper motion (declination) [mas/yr] -501.6879771 (0.02) -501.6015662 (0.04) -501.688 (0.02) -501.6015662
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.35 16.35 16.35 16.10
V magnitude 15.72 15.76 15.76 15.76 15.72
R magnitude 15.41 15.41 15.41 15.90
I magnitude 15.04 15.04 15.04
J magnitude 14.61 (0.004) 14.57 (0.03) 14.59 14.69 14.59 14.59 14.57 (0.03)
H magnitude 14.35 (0.04) 14.35 (0.04) 14.35 14.39 14.35 14.35 14.35 (0.04)
K magnitude 14.16 (0.07) 14.16 (0.07) 14.24 14.30 14.24 14.24 14.16 (0.07)
u magnitude 16.88 (0.03) 16.88 (0.008) 16.88 (0.008)
g magnitude 15.95 (0.002) 15.98 (0.004)
r magnitude 15.59 (0.006) 15.58 (0.004)
i magnitude 15.44 (0.003) 15.42 (0.005)
z magnitude 15.41 (0.004) 15.38 (0.006)
G magnitude 15.58 (0.002) 15.59 15.59 15.58 15.58 (0.003) 15.59
BP magnitude 15.89 (0.002) 15.90 15.90
RP magnitude 15.09 (0.002) 15.10 15.10
Pan g magnitude 15.95 (0.002) 15.96 (0.008) 15.95 (0.002)
Pan r magnitude 15.59 (0.006) 15.61 (0.01) 15.59 (0.006)
Pan i magnitude 15.44 (0.002) 15.47 (0.009) 15.44 (0.003)
Pan z magnitude 15.41 (0.003) 15.41 (0.003) 15.41 (0.004)
Pan y magnitude 15.42 (0.005) 15.42 (0.004) 15.42 (0.004)
E(B-V) 0.000

* 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.