All names: EGGR 119, GJ 626.2, G 180-57, KUV 433-1, WDJ162825.00+364615.85, PM J16284+3646, R 640, WD 1626+36, NLTT 42899, Gaia EDR3 1331106782752978688, Gaia DR3 1331106782752978688, TIC 255908093, LSPM J1628+3646, PLX 3747.01, Gaia DR2 1331106782752978688, UBV 13949, LTT 14906, WD 1626+368, USNO 252, UBV M 42660, LHS 3200, Ross 640, PSO J247.1023+36.7732, GJ 9564, GCRV 66383, USNO 751, SDSS J162824.88+364618.2, J1628+3646, Ci 20 992, LAWD 62, WISEA J162824.57+364623.6, CNS5 4036, KUV 16266+3653, LFT 1280, 16284+3646, 2MASS J16282502+3646153, CSI+36-16267, uvby98 980180057, USNO-B1.0 1267-00267574
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Coutu et al. 2019 | Blouin et al. 2019 | Blouin et al. 2018 | Gaia DR2 | Stilism | Holberg et al. 2016 | Limoges et al. 2015 | Sion et al. 2014 | Giammichele et al. 2012 | Holberg et al. 2008 | Dufour et al. 2007 | Bergeron et al. 2001 | Koester & Wolff 2000 | Sion et al. 1990 | Liebert et al. 1987 | Zeidler-K.T et al. 1986 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 28 24.34 (0.01) | 16 28 24.37 (0.02) | 16 28 25.00 | 16 28 24.37 (0.02) | 16 28 24.96 | 16 28 24.34 | 16 28 25.00 (0.01) | 16 28 24.37 | 16 28 26.78 | ||||||||||||||||||
| Declination | 36 46 27.79 (0.01) | 36 46 27.42 (0.02) | 36 46 15.85 | 36 46 27.42 (0.02) | 36 46 15.60 | 36 46 27.79 | 36 46 15.85 (0.01) | 36 46 27.42 | 36 45 50.76 | ||||||||||||||||||
| Spectral type | DZA | DZA | DZA | DZA | DZA | DZA | DZA | DZA | DZA | DZA6.0 | DZA | DZ | DZA | DA | DZA | DZAQ | DZ | DZ6 | DZA6 | ||||||||
| Effective temperature | [K] | 8346.0 (58) | 8964.0 (80) | 8177.0 (21) | 9114.7 (32) | 8316.0 (435) | 8070.0 (140) | 8070.0 (140) | 8493.0 (320) | 8020.0 (156) | 8507.0 | 8507.0 (320) | 8440.0 (320) | 8640.0 (280) | 8500.0 (200) | 8500.0 | 8800.0 | 8800.0 | 8230.0 (25) | ||||||||
| log(g) | [cgs] | 7.96 (0.008) | 8.22 (0.02) | 7.97 (0.004) | 8.12 (0.008) | 7.98 | 7.92 (0.008) | 7.92 (0.008) | 7.76 (0.05) | 7.98 (0.05) | (0.05) | 8.02 (0.05) | 8.03 (0.05) | 8.00 (0.1) | 8.00 | 7.93 (0.004) | |||||||||||
| Mass | [M☉] | 0.551 (0.007) | 0.72 (0.01) | 0.559 (0.003) | 0.5674 | 0.532 (0.005) | 0.58 (0.03) | 0.56 (0.03) | 0.58 (0.03) | 0.59 (0.03) | 0.6 (0.03) | 0.534 (0.004) | |||||||||||||||
| log(Luminosity) | [L☉] | -3.22 | -3.13 | -3.12 (0.03) | |||||||||||||||||||||||
| Cooling age | [Gyr] | 1.0600 | 0.9870 | 1.0110 (0.05) | 1.0200 | 1.0200 | 1.0200 (0.07) | ||||||||||||||||||||
| log(H/He) | -4.0 | -3.0 | -3.6576 (0.03) | -3.5 | -3.5 (0.2) | -3.7 | -3.63 (0.05) | -3.3 (0.3) | -3.1 | -3.5 | |||||||||||||||||
| log(C/He) | <-9.0 | -6.0 | |||||||||||||||||||||||||
| log(Ca/He) | -9.4 | -8.86 | -9.0694 (0.08) | -9.12 | -9.12 (0.05) | -8.98 | -8.83 (0.04) | -8.65 (0.5) | -9.1 | -9.1 | |||||||||||||||||
| log(Ca/H) | |||||||||||||||||||||||||||
| log(N/He) | |||||||||||||||||||||||||||
| log(O/He) | |||||||||||||||||||||||||||
| log(Na/He) | |||||||||||||||||||||||||||
| log(Mg/He) | -7.4 (0.1) | -7.25 (0.7) | -6.7 | -7.2 | |||||||||||||||||||||||
| log(Al/He) | <-8.25 | ||||||||||||||||||||||||||
| log(Si/He) | -7.9 (0.2) | -7.5 (0.5) | -7.3 | ||||||||||||||||||||||||
| log(P/He) | |||||||||||||||||||||||||||
| log(S/He) | |||||||||||||||||||||||||||
| log(Cl/He) | |||||||||||||||||||||||||||
| log(Sc/He) | |||||||||||||||||||||||||||
| log(Ti/He) | |||||||||||||||||||||||||||
| log(V/He) | |||||||||||||||||||||||||||
| log(Cr/He) | |||||||||||||||||||||||||||
| log(Mn/He) | |||||||||||||||||||||||||||
| log(Fe/He) | -8.44 (0.1) | -8.3 (-0.1) | -8.7 | -8.3 | |||||||||||||||||||||||
| log(Co/He) | |||||||||||||||||||||||||||
| log(Ni/He) | |||||||||||||||||||||||||||
| log(Cu/He) | |||||||||||||||||||||||||||
| log(Zn/He) | |||||||||||||||||||||||||||
| log(Ga/He) | |||||||||||||||||||||||||||
| log(Ge/He) | |||||||||||||||||||||||||||
| log(Sr/He) | |||||||||||||||||||||||||||
| Parallax | [mas] | 62.91 (0.01) | 62.91 (0.01) | 62.91 (0.02) | 62.91 (0.02) | 62.91 | 62.91 (0.02) | 62.91 (0.02) | 62.91 (0.02) | 62.70 (2) | 62.70 (2) | 62.70 (2) | 62.70 (2) | 62.70 (2) | 62.91 | 62.91 (0.01) | 62.91 (0.02) | 64.00 (4) | |||||||||
| Distance | [pc] | 15.90 (0.004) | 15.90 (0.003) | 15.90 (0.005) | 15.89 (0.006) | 15.89 (0.006) | 15.89 (0.006) | 15.89 (0.006) | 15.89 (0.006) | 15.95 (0.5) | 15.90 (0.5) | 15.94 | 15.90 (0.5) | 15.95 | 15.95 (0.5) | 15.90 | 15.90 (0.004) | 15.89 (0.006) | 15.62 (0.9) | ||||||||
| Composition | He | He | He | He | He | He | He | He | He | He | He | ||||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -494.2303311 (0.01) | -494.1851863 (0.03) | -494.23 (0.01) | -494.1851863 | ||||||||||||||||||||||
| Proper motion (declination) | [mas/yr] | 746.697792 (0.02) | 746.553641 (0.04) | 746.698 (0.02) | 746.553641 | ||||||||||||||||||||||
| Variability | |||||||||||||||||||||||||||
| Magnetic | |||||||||||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||||||||||
| Binarity | |||||||||||||||||||||||||||
| B magnitude | 14.02 (0.03) | 14.02 | 14.02 | 14.01 | |||||||||||||||||||||||
| V magnitude | 13.83 (0.03) | 13.83 | 13.83 | 13.83 | |||||||||||||||||||||||
| R magnitude | 13.75 (0.03) | 13.75 | 13.75 | 13.90 | |||||||||||||||||||||||
| I magnitude | 13.66 (0.03) | 13.66 | 13.66 | ||||||||||||||||||||||||
| J magnitude | 13.66 (0.003) | 13.64 (0.02) | 13.58 (0.03) | 13.58 | 13.58 | 13.64 (0.02) | |||||||||||||||||||||
| H magnitude | 13.65 (0.03) | 13.65 (0.03) | 13.57 (0.03) | 13.57 | 13.57 | 13.65 (0.03) | |||||||||||||||||||||
| K magnitude | 13.57 (0.04) | 13.57 (0.04) | 13.58 (0.03) | 13.58 | 13.58 | 13.57 (0.04) | |||||||||||||||||||||
| u magnitude | 14.22 (0.005) | 14.22 (0.005) | 14.22 (0.005) | ||||||||||||||||||||||||
| g magnitude | 14.03 (0.002) | 14.03 (0.002) | |||||||||||||||||||||||||
| r magnitude | 13.91 (0.004) | 14.04 (0.005) | |||||||||||||||||||||||||
| i magnitude | 14.00 (0.004) | 14.21 (0.002) | |||||||||||||||||||||||||
| z magnitude | 14.16 (0.005) | 14.16 (0.005) | |||||||||||||||||||||||||
| G magnitude | 13.78 (0.0007) | 13.80 | 13.80 | 13.78 | 13.78 (0.003) | 13.80 | |||||||||||||||||||||
| BP magnitude | 13.85 (0.0007) | 13.83 | 13.83 | ||||||||||||||||||||||||
| RP magnitude | 13.66 (0.0006) | 13.67 | 13.67 | ||||||||||||||||||||||||
| Pan g magnitude | 13.85 (0.01) | 13.85 (0.01) | 13.85 (0.01) | ||||||||||||||||||||||||
| Pan r magnitude | 13.91 (0.005) | 13.91 (0.005) | 13.91 (0.005) | ||||||||||||||||||||||||
| Pan i magnitude | 14.00 (0.004) | 14.00 (0.004) | 14.00 (0.004) | ||||||||||||||||||||||||
| Pan z magnitude | 14.13 (0.01) | 14.13 (0.01) | 14.13 (0.01) | ||||||||||||||||||||||||
| Pan y magnitude | 14.25 (0.002) | 14.25 (0.006) | 14.25 (0.006) | ||||||||||||||||||||||||
| E(B-V) | 0.001 | ||||||||||||||||||||||||||
* 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.