All names: WDJ055509.53-041007.07, TIC 39296409, Gaia DR3 3022956969731332096, LHS 32, USNO 20, GJ 223.2, 2MASS J05550948-0410042, J0555-0410, PLX 1363.02, UBV 6031, G 99-44, G 106-12, Zkh 80, CNS5 1470, GJ 9193, USNO 702, 8pc 155.00, WISEA J055509.90-041031.2, UBV M 43006, NAME HL 4, CSI-04-05527, GEN# +9.80099044, WD 0552-002, EGGR 45, G99-44, WD 0552-041, Gaia DR2 3022956969731332096, NLTT 15811, PM 05526-0409, PSO J088.7916-04.1769, Gaia EDR3 3022956969731332096, LP 658-2
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | Coutu et al. 2019 | Blouin et al. 2019 | Blouin et al. 2018 | Gaia DR2 | Subasavage et al. 2017 | Stilism | Holberg et al. 2016 | Sion et al. 2014 | Giammichele et al. 2012 | Subasavage et al. 2009 | Holberg et al. 2008 | Dufour et al. 2007 | Wolff et al. 2002 | 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 | 05 55 10.10 (0.01) | 05 55 09.49 | 05 55 10.09 (0.02) | 05 55 09.53 | 05 55 09.36 | 05 55 09.53 | 05 55 10.10 | 05 55 09.53 (0.01) | 05 55 10.09 | 05 55 08.90 | ||||||||||||||
| Declination | -04 10 44.14 (0.01) | -04 10 04.30 | -04 10 42.98 (0.03) | -04 10 00.01 | -04 10 04.80 | -04 10 07.10 | -04 10 44.14 | -04 10 07.07 (0.01) | -04 10 42.98 | -04 08 45.24 | ||||||||||||||
| Spectral type | DZ | DZ | DZ | DZ | DZ | DZ | DZ | DZ10.0 | DZ | DZ | DZ | DZ | DZ | DC | DZ11 | DZ9 | ||||||||
| Effective temperature | [K] | 4821.0 (19) | 4534.0 (7) | 4491.0 (67) | 4430.0 (40) | 4430.0 (40) | 5430.0 (90) | 5182.0 (81) | 5182.0 | 5182.0 (81) | 5180.0 (70) | 4270.0 (70) | 5060.0 (60) | 5080.0 (60) | 4758.0 (7) | |||||||||
| log(g) | [cgs] | 8.11 (0.01) | 7.96 (0.004) | 7.92 | 7.97 (0.02) | 7.97 (0.02) | 8.49 (0.03) | 8.37 (0.02) | 8.37 (0.02) | 8.35 (0.01) | 7.80 (0.02) | 8.31 (0.02) | 8.33 (0.01) | 8.07 (0.003) | ||||||||||
| Mass | [M☉] | 0.64 (0.009) | 0.541 (0.004) | 0.5179 | 0.549 (0.01) | 0.9 (0.02) | 0.82 (0.01) | 0.82 (0.01) | 0.8 (0.01) | 0.45 (0.01) | 0.77 (0.01) | 0.78 (0.01) | 0.624 (0.003) | |||||||||||
| log(Luminosity) | [L☉] | -4.20 (0.04) | -4.21 | -4.20 (0.01) | -4.21 (0.02) | -4.21 (0.02) | ||||||||||||||||||
| Cooling age | [Gyr] | 6.4500 | 6.0300 | 6.9550 (0.3) | 7.3400 (0.4) | 7.3100 | 7.8900 | 6.8200 (0.02) | 6.9200 (0.05) | 8.0900 (0.06) | ||||||||||||||
| log(H/He) | <-30.0 | <-5 | <-5.0 | |||||||||||||||||||||
| log(C/He) | ||||||||||||||||||||||||
| log(Ca/He) | -11.15 | -11.1577 (0.02) | -11.38 | -11.38 (0.05) | -10.92 (0.04) | |||||||||||||||||||
| log(Ca/H) | ||||||||||||||||||||||||
| log(N/He) | ||||||||||||||||||||||||
| log(O/He) | ||||||||||||||||||||||||
| log(Na/He) | ||||||||||||||||||||||||
| log(Mg/He) | -8.66 (0.2) | |||||||||||||||||||||||
| log(Al/He) | ||||||||||||||||||||||||
| log(Si/He) | ||||||||||||||||||||||||
| 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) | ||||||||||||||||||||||||
| log(Co/He) | ||||||||||||||||||||||||
| log(Ni/He) | ||||||||||||||||||||||||
| log(Cu/He) | ||||||||||||||||||||||||
| log(Zn/He) | ||||||||||||||||||||||||
| log(Ga/He) | ||||||||||||||||||||||||
| log(Ge/He) | ||||||||||||||||||||||||
| log(Sr/He) | ||||||||||||||||||||||||
| Parallax | [mas] | 155.24 (0.02) | 155.24 (0.02) | 155.25 (0.03) | 155.25 | 155.25 (0.03) | 155.25 (0.03) | 155.25 (0.03) | 156.11 (0.6) | 155.97 (0.8) | 155.00 (2) | 155.97 (0.8) | 155.00 (2) | 155.00 (2) | 155.00 (2) | 155.24 | 155.24 (0.02) | 155.25 (0.03) | 155.90 (2) | |||||
| Distance | [pc] | 6.44 (0.0007) | 6.44 (0.0008) | 6.44 (0.001) | 6.44 (0.001) | 6.44 (0.001) | 6.44 (0.001) | 6.44 (0.001) | 6.41 (0.03) | 6.41 (0.03) | 6.41 | 6.45 (0.08) | 6.41 (0.03) | 6.45 | 6.45 (0.09) | 6.45 (0.09) | 6.44 | 6.44 (0.0007) | 6.44 (0.001) | 6.41 (0.09) | ||||
| Composition | He | He | He | He | H | H | H | He | He | He | He | He | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 535.249 (0.02) | 535.319 (0.04) | 535.249 (0.02) | 535.3192547 | |||||||||||||||||||
| Proper motion (declination) | [mas/yr] | -2317.011 (0.01) | -2316.961 (0.04) | -2317.011 (0.01) | -2316.960513 | |||||||||||||||||||
| Variability | ||||||||||||||||||||||||
| Magnetic | ||||||||||||||||||||||||
| Bd | [MG] | |||||||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||||||
| Binarity | ||||||||||||||||||||||||
| B magnitude | 15.49 (0.03) | 15.48 | 15.48 | 15.48 | 15.49 | |||||||||||||||||||
| V magnitude | 14.45 (0.03) | 14.47 | 14.49 | 14.47 | 14.47 | 14.47 | 14.45 | |||||||||||||||||
| R magnitude | 13.99 (0.03) | 13.99 | 13.97 | 13.97 | 13.97 | 13.99 (0.003) | ||||||||||||||||||
| I magnitude | 13.54 (0.03) | 13.51 | 13.49 | 13.49 | 13.49 | 13.54 (0.004) | ||||||||||||||||||
| J magnitude | 13.05 (0.03) | 13.05 (0.03) | 13.05 (0.03) | 13.05 (0.03) | 13.02 | 13.05 (0.03) | 13.02 | 13.05 | 13.05 (0.03) | |||||||||||||||
| H magnitude | 12.90 (0.03) | 12.86 (0.03) | 12.86 (0.03) | 12.86 (0.03) | 12.90 | 12.86 (0.03) | 12.90 | 12.90 | 12.86 (0.03) | |||||||||||||||
| K magnitude | 12.81 (0.03) | 12.78 (0.03) | 12.78 (0.03) | 12.78 (0.03) | 12.82 | 12.78 (0.03) | 12.82 | 12.81 | 12.78 (0.03) | |||||||||||||||
| u magnitude | ||||||||||||||||||||||||
| g magnitude | 14.85 (0.004) | |||||||||||||||||||||||
| r magnitude | 14.22 (0.002) | |||||||||||||||||||||||
| i magnitude | 13.96 (0.0009) | |||||||||||||||||||||||
| z magnitude | 13.86 (0.005) | |||||||||||||||||||||||
| G magnitude | 14.24 (0.003) | 14.25 | 14.24 | 14.24 (0.003) | 14.25 | |||||||||||||||||||
| BP magnitude | 14.73 (0.003) | 14.76 | 14.76 | |||||||||||||||||||||
| RP magnitude | 13.59 (0.004) | 13.60 | 13.60 | |||||||||||||||||||||
| Pan g magnitude | 14.85 (0.004) | 14.85 (0.004) | 14.85 (0.004) | |||||||||||||||||||||
| Pan r magnitude | 14.22 (0.003) | 14.22 (0.002) | 14.22 (0.002) | |||||||||||||||||||||
| Pan i magnitude | 13.96 (0.0009) | 13.96 (0.0009) | 13.96 (0.001) | |||||||||||||||||||||
| Pan z magnitude | 13.86 (0.005) | 13.86 (0.005) | 13.86 (0.005) | |||||||||||||||||||||
| Pan y magnitude | 13.84 (0.003) | 13.84 (0.003) | 13.84 (0.003) | |||||||||||||||||||||
| 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.