GD 420
All names: WDJ014121.62+770900.73, Gaia EDR3 560568793490187264, USNO-B1.0 1671-00015608, NLTT 5535, WD 0136+768, GD 420, LSPM J0141+7709, GEN# +6.10060420, Gaia DR2 560568793490187264, 2MASS J01412160+7709006, SBC9 2049, Gaia DR3 560568793490187264, EGGR 339, WD 0136+76, LP 13-249, TIC 289379955
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 41 22.24 (0.02) | 01 41 22.22 (0.03) | 01 41 22.24 | 01 41 21.62 (0.02) | 01 41 22.22 | 01 41 20.18 | |||||
| Declination | 77 08 58.28 (0.02) | 77 08 58.35 (0.02) | 77 08 58.28 | 77 09 00.73 (0.02) | 77 08 58.35 | 77 08 57.84 | |||||
| Spectral type | DA | DA | DA | DA3.0 | DA3 | ||||||
| Effective temperature | [K] | 11599.0 | 16910.0 (274) | 14468.0 (109) | |||||||
| log(g) | [cgs] | 7.12 | 7.79 (0.05) | 7.38 (0.007) | |||||||
| Mass | [M☉] | 0.251 | 0.51 (0.02) | 0.332 (0.003) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.1688 | |||||||||
| 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] | 13.38 (0.03) | 13.37 (0.03) | 13.38 | 13.38 (0.03) | 13.37 (0.03) | |||||
| Distance | [pc] | 74.75 (0.2) | 74.81 (0.2) | 66.00 | 74.75 | 74.75 (0.2) | 74.81 (0.2) | ||||
| Composition | H | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | 129.0064886 (0.03) | 129.0296064 (0.06) | 129.006 (0.03) | 129.0296064 | ||||||
| Proper motion (declination) | [mas/yr] | -153.2154325 (0.03) | -153.3185752 (0.05) | -153.215 (0.03) | -153.3185752 | ||||||
| Variability | NOV | ||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 14.91 | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 15.00 | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 15.09 (0.05) | ||||||||||
| H magnitude | 15.26 (0.1) | ||||||||||
| K magnitude | 15.14 (0.2) | ||||||||||
| u magnitude | |||||||||||
| g magnitude | |||||||||||
| r magnitude | |||||||||||
| i magnitude | |||||||||||
| z magnitude | |||||||||||
| G magnitude | 14.90 (0.001) | 14.92 | 14.90 | 14.90 (0.003) | 14.92 | ||||||
| BP magnitude | 14.88 (0.001) | 14.88 | 14.88 | ||||||||
| RP magnitude | 14.94 (0.001) | 14.94 | 14.94 | ||||||||
| Pan g magnitude | 14.82 (0.007) | ||||||||||
| Pan r magnitude | 15.04 (0.003) | ||||||||||
| Pan i magnitude | 15.26 (0.003) | ||||||||||
| Pan z magnitude | 15.46 (0.003) | ||||||||||
| Pan y magnitude | 15.61 (0.006) | ||||||||||
| E(B-V) | 0.003 | ||||||||||
* Constant surface field
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