Gaia DR2 20484382662003968
All names: NLTT 9087, LSPM J0250+0817, Gaia EDR3 20484382662003968, Gaia DR2 20484382662003968, WDJ025007.11+081753.42, Gaia DR3 20484382662003968, J0250+0817, 2MASS J02500710+0817534, WDJ02507.11+081753.42, TIC 387464389, USNO-B1.0 0982-00037977, LP 531-14
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Tremblay et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 50 07.33 (0.1) | 02 50 07.32 (0.2) | 02 50 07.32 | 02 50 07.33 | 02 50 07.11 (0.1) | 02 50 07.32 | ||||||||
| Declination | 08 17 46.70 (0.1) | 08 17 46.91 (0.1) | 08 17 46.91 | 08 17 46.70 | 08 17 53.42 (0.1) | 08 17 46.91 | ||||||||
| Spectral type | DC | DC | DC | DC | DA | DC | ||||||||
| Effective temperature | [K] | 4623.0 (109) | 4498.0 (20) | 4329.3 (86) | 4330.0 (90) | 4511.0 | 4205.0 | 4569.0 (62) | ||||||
| log(g) | [cgs] | 7.87 (0.09) | 7.75 (0.01) | 7.65 (0.08) | 7.65 (0.08) | 7.76 | 7.51 | 7.83 (0.03) | ||||||
| Mass | [M☉] | 0.499 (0.04) | 0.434 (0.01) | 0.441 | 0.317 | 0.477 (0.03) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 5.2100 | 4.8600 | 3.5320 | ||||||||||
| 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] | 26.32 (0.1) | 26.32 (0.1) | 25.97 (0.2) | 25.97 (0.2) | 25.97 (0.2) | 26.32 | 26.32 (0.1) | 25.97 (0.2) | |||||
| Distance | [pc] | 38.00 (0.2) | 37.99 (0.2) | 38.51 (0.3) | 38.50 (0.3) | 38.50 (0.3) | 38.00 | 38.00 (0.2) | 38.50 (0.3) | |||||
| Composition | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 206.2047136 (0.1) | 206.4276391 (0.3) | 206.205 (0.1) | 206.4276391 | |||||||||
| Proper motion (declination) | [mas/yr] | -420.1376492 (0.1) | -420.3614387 (0.2) | -420.138 (0.1) | -420.3614387 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 19.70 | |||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | 18.50 | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 16.24 (0.1) | 16.24 (0.1) | ||||||||||||
| H magnitude | 16.30 (0.2) | 16.30 (0.2) | ||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | ||||||||||||||
| g magnitude | ||||||||||||||
| r magnitude | ||||||||||||||
| i magnitude | ||||||||||||||
| z magnitude | ||||||||||||||
| G magnitude | 17.98 (0.03) | 18.00 | 18.00 | 17.98 | 17.98 (0.003) | 18.00 | ||||||||
| BP magnitude | 18.58 (0.03) | 18.60 | 18.60 | |||||||||||
| RP magnitude | 17.28 (0.01) | 17.25 | 17.25 | |||||||||||
| Pan g magnitude | 18.73 (0.005) | 18.75 (0.01) | ||||||||||||
| Pan r magnitude | 17.93 (0.007) | 17.94 (0.002) | ||||||||||||
| Pan i magnitude | 17.60 (0.005) | 17.61 (0.004) | ||||||||||||
| Pan z magnitude | 17.45 (0.009) | 17.48 (0.008) | ||||||||||||
| Pan y magnitude | 17.44 (0.02) | 17.42 (0.005) | ||||||||||||
| E(B-V) | 0.001 | |||||||||||||
* Constant surface field
Special notes:
Spectra
Controls
Normalize at:
Normalize by mean flux
Range:
x:
to
y:
to
Spectra available:
Spectra without link are available upon request
Absorption lines
Photometric filters
BVRI
ugriz
Photometric fit
