All names: uvby98 980039027, J0436+2709, PMSC 04306+2656B, EGGR 40, 04367+2709, GEN# +9.80039027, PSO J069.1879+27.1637, CNS5 1148, Gaia DR2 151650935831913216, Gaia EDR3 151650935831913216, NLTT 13599, IDS 04306+2655 B, ** GIC 49B, HD 283750B, G39-027, Gaia DR3 151650935831913216, UCAC2 41322899, LP 358-525, WDJ043644.90+270951.52, UCAC4 586-012414, USNO 416, BD+26 730B, 2MASS J04364490+2709514, WD 0433+27, WD 0433+270, LSPM J0436+2709, G 39-27, UBV 4431, LTT 11463, PM J04367+2709, WDS J04368+2708B, CSI+27-04337, G39-27, USNO-B1.0 1171-00070409, TIC 427771898, UCAC3 235-27770, GJ 171.2 B, CCDM J04368+2708B
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | Gaia DR2 | Tremblay et al. 2017 | Stilism | Holberg et al. 2016 | Limoges et al. 2015 | Sion et al. 2014 | Giammichele et al. 2012 | Holberg et al. 2008 | 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 | 04 36 45.17 (0.04) | 04 36 45.16 (0.05) | 04 36 45.16 (0.05) | 04 36 44.88 | 04 36 45.17 | 04 36 44.90 (0.04) | 04 36 45.16 | 04 36 44.64 | |||||||||||||||
| Declination | 27 09 49.15 (0.02) | 27 09 49.22 (0.04) | 27 09 49.22 (0.04) | 27 09 50.40 | 27 09 49.15 | 27 09 51.52 (0.02) | 27 09 49.22 | 27 09 56.52 | |||||||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DA9.0 | DA | DA | DA | DA | DA | DC8 | DC8 | |||||||
| Effective temperature | [K] | 5534.0 (29) | 5536.0 (12) | 5505.1 (15) | 5555.0 (30) | 5568.0 | 5630.0 (100) | 5629.0 (98) | 5920.0 (112) | 5629.0 | 5629.0 (98) | 5434.0 | 5620.0 (110) | 5620.0 (110) | 5635.0 (19) | ||||||||
| log(g) | [cgs] | 8.02 (0.02) | 8.04 (0.005) | 8.01 (0.01) | 8.05 (0.02) | 8.05 | 8.06 (0.04) | 8.87 (0.2) | 8.06 (0.04) | 8.02 | 8.14 (0.07) | 8.15 (0.07) | 8.08 (0.007) | ||||||||||
| Mass | [M☉] | 0.599 (0.01) | 0.606 (0.005) | 0.618 (0.01) | 0.618 | 0.62 (0.03) | 1.13 (0.1) | 0.62 (0.02) | 0.67 (0.05) | 0.68 (0.05) | 0.633 (0.006) | ||||||||||||
| log(Luminosity) | [L☉] | -4.34 | -3.87 | -3.92 (0.04) | -3.92 (0.04) | ||||||||||||||||||
| Cooling age | [Gyr] | 3.3400 | 3.4260 (0.2) | 3.3850 | 3.3600 | 3.2100 | 4.0700 (0.7) | 4.5900 (0.7) | |||||||||||||||
| log(H/He) | |||||||||||||||||||||||
| log(C/He) | |||||||||||||||||||||||
| log(Ca/He) | |||||||||||||||||||||||
| log(Ca/H) | <-12.184 | ||||||||||||||||||||||
| 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] | 57.47 (0.04) | 57.47 (0.04) | 57.49 (0.06) | 57.49 (0.06) | 57.49 (0.06) | 57.49 (0.06) | 57.22 (0.4) | 56.54 (1) | 60.20 (3) | 56.02 (1) | 56.02 (1) | 60.20 (3) | 60.20 (3) | 57.47 | 57.47 (0.04) | 57.49 (0.06) | 62.30 | |||||
| Distance | [pc] | 17.40 (0.01) | 17.40 (0.01) | 17.39 (0.02) | 17.39 (0.02) | 17.39 (0.02) | 17.39 (0.02) | 17.48 (0.1) | 17.69 (0.4) | 16.60 (0.8) | 17.85 | 17.90 (0.4) | 17.85 | 16.61 (0.8) | 16.61 (0.8) | 17.40 | 17.40 (0.01) | 17.39 (0.02) | 16.05 | ||||
| Composition | H | H | H | H | H | H | H | H | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 227.4793382 (0.06) | 227.5122167 (0.1) | 227.479 (0.06) | 227.5122167 | ||||||||||||||||||
| Proper motion (declination) | [mas/yr] | -148.3995264 (0.04) | -148.4275794 (0.09) | -148.4 (0.04) | -148.4275794 | ||||||||||||||||||
| Variability | |||||||||||||||||||||||
| Magnetic | |||||||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||||||
| Binarity | WDMS | WDMS | DDU | ||||||||||||||||||||
| B magnitude | 16.48 | 16.48 | 16.48 | 16.46 (0.08) | |||||||||||||||||||
| V magnitude | 15.79 (0.06) | 15.82 | 15.81 | 15.81 | 15.81 | ||||||||||||||||||
| R magnitude | 15.40 | 15.40 | 15.40 | 15.40 | |||||||||||||||||||
| I magnitude | 15.01 | 15.01 | 15.01 | ||||||||||||||||||||
| J magnitude | 14.60 (0.04) | 14.60 (0.04) | 14.61 | 14.55 | 14.61 | 14.61 | 14.60 (0.04) | ||||||||||||||||
| H magnitude | 14.12 (0.009) | 14.23 (0.06) | 14.32 | 14.31 | 14.32 | 14.32 | 14.23 (0.06) | ||||||||||||||||
| K magnitude | 14.21 (0.006) | 14.14 (0.07) | 14.22 | 14.14 | 14.22 | 14.22 | 14.14 (0.07) | ||||||||||||||||
| u magnitude | |||||||||||||||||||||||
| g magnitude | 16.04 (0.006) | ||||||||||||||||||||||
| r magnitude | 15.61 (0.0008) | ||||||||||||||||||||||
| i magnitude | 15.44 (0.002) | ||||||||||||||||||||||
| z magnitude | 15.38 (0.007) | ||||||||||||||||||||||
| G magnitude | 15.61 (0.002) | 15.63 | 15.63 | 15.53 (0.001) | 15.61 | 15.61 (0.003) | 15.63 | ||||||||||||||||
| BP magnitude | 15.97 (0.002) | 15.99 | 15.99 | ||||||||||||||||||||
| RP magnitude | 15.07 (0.003) | 15.09 | 15.09 | ||||||||||||||||||||
| Pan g magnitude | 16.04 (0.006) | 16.04 (0.006) | 16.04 (0.006) | ||||||||||||||||||||
| Pan r magnitude | 15.61 (0.0007) | 15.61 (0.0008) | 15.61 (0.001) | ||||||||||||||||||||
| Pan i magnitude | 15.44 (0.002) | 15.44 (0.002) | 15.44 (0.002) | ||||||||||||||||||||
| Pan z magnitude | 15.38 (0.006) | 15.38 (0.007) | 15.38 (0.007) | ||||||||||||||||||||
| Pan y magnitude | 15.38 (0.005) | 15.38 (0.005) | 15.38 (0.005) | ||||||||||||||||||||
| E(B-V) | 0.000 | ||||||||||||||||||||||
* Constant surface field
Spectra without link are available upon request
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.