Gaia DR2 364978005758397952
All names: SDSS J003838.43+340944.6, USNO-B1.0 1241-00010247, Gaia EDR3 364978005758397952, J0038+3409, Gaia DR2 364978005758397952, LP 241-42, NLTT 2068, LSPM J0038+3409, Gaia DR3 364978005758397952, WDJ003838.26+340944.83, SDSS J003838.42+340944.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 38 38.53 (0.07) | 00 38 38.52 | 00 38 38.53 | 00 38 38.26 (0.07) | 00 38 38.52 | ||||||||
| Declination | 34 09 44.52 (0.05) | 34 09 44.53 | 34 09 44.52 | 34 09 44.83 (0.05) | 34 09 44.53 | ||||||||
| Spectral type | DC | DC | DC | DC | DC | ||||||||
| Effective temperature | [K] | 9191.0 (58) | 9591.0 (60) | 9191.0 (58) | 9839.0 | 9755.0 | 9001.0 (115) | ||||||
| log(g) | [cgs] | 7.91 (0.01) | 8.02 (0.02) | 7.92 (0.02) | 8.20 | 8.13 | 7.89 (0.02) | ||||||
| Mass | [M☉] | 0.525 (0.01) | 0.592 (0.01) | 0.534 (0.01) | 0.723 | 0.658 | 0.516 (0.02) | ||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.7500 | 0.8412 | 0.8059 | |||||||||
| log(H/He) | -4.2 | -4.4 | -4.2 | ||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | |||||||||||||
| log(Ca/H) | |||||||||||||
| log(N/He) | |||||||||||||
| log(O/He) | |||||||||||||
| log(Na/He) | |||||||||||||
| log(Mg/He) | |||||||||||||
| 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] | 11.42 (0.1) | 11.54 (0.1) | 11.54 (0.1) | 11.42 | 11.42 (0.1) | 11.54 (0.1) | ||||||
| Distance | [pc] | 87.54 (0.8) | 86.66 (1) | 86.66 (1) | 87.54 | 87.54 (0.8) | 86.66 (1) | ||||||
| Composition | He | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 207.7154957 (0.08) | 207.862889 (0.2) | 207.715 (0.08) | 207.862889 | ||||||||
| Proper motion (declination) | [mas/yr] | -19.61653775 (0.06) | -19.37154582 (0.1) | -19.617 (0.06) | -19.37154582 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 18.00 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 17.30 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 17.20 (0.03) | ||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 17.36 (0.01) | 17.41 (0.01) | 17.41 (0.01) | ||||||||||
| g magnitude | 17.23 (0.004) | 17.23 (0.004) | |||||||||||
| r magnitude | 17.28 (0.005) | 17.28 (0.005) | |||||||||||
| i magnitude | 17.42 (0.006) | 17.42 (0.006) | |||||||||||
| z magnitude | 17.58 (0.02) | 17.58 (0.02) | |||||||||||
| G magnitude | 17.20 (0.005) | 17.23 | 17.20 | 17.20 (0.003) | 17.23 | ||||||||
| BP magnitude | 17.26 (0.005) | 17.23 | 17.23 | ||||||||||
| RP magnitude | 17.10 (0.009) | 17.10 | 17.10 | ||||||||||
| Pan g magnitude | 17.23 (0.003) | 17.23 (0.003) | |||||||||||
| Pan r magnitude | 17.29 (0.004) | 17.29 (0.004) | |||||||||||
| Pan i magnitude | 17.43 (0.004) | 17.43 (0.005) | |||||||||||
| Pan z magnitude | 17.58 (0.007) | 17.58 (0.006) | |||||||||||
| Pan y magnitude | 17.70 (0.008) | 17.70 (0.007) | |||||||||||
| E(B-V) | 0.005 | ||||||||||||
* Constant surface field
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