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Catalog / GJ 244 / Sirius B

Sirius B

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Sirius B

GJ 244 B · GJ 244 · recons:gj-244:b · Gaia DR3 2947050466531873024
Distance
2.670 pc · 8.71 ly
Spectral type
DA2 (RECONS)
Teff
25200 K (spectral type (Pecaut & Mamajek 2013))
Magnitudes
V 8.44 · G 8.524 · BP−RP -0.278
Parallax
374.490 mas ± 0.231 (Gaia DR3)
Gaia source_id
2947050466531873024
RECONS name
GJ 244 B
RECONSGaia DR3

Identity & provenance

Stable ID
gaia-dr3:2947050466531873024
Primary name
Sirius B · RECONS common name
Common name
Sirius B
RECONS name
GJ 244 B
RECONS system
GJ 244 (rank #5)
Component
B
LHS
—
Gaia source_id
2947050466531873024
Gaia designation
Gaia DR3 2947050466531873024
Source catalogs
RECONS+Gaia DR3
Cross-match
matched (7.50″, 1 candidates)
Match note
contested: Gaia source was a candidate for 2 RECONS components

Position

RA
101.28663 ° · Gaia DR3
Dec
-16.72093 ° · Gaia DR3
Reference epoch
J2016
Galactic l, b
227.23445 °, -8.89283 °
XYZ (equatorial)
-0.501, 2.508, -0.768 pc
Proper motion
-461.57, -914.52 mas/yr · Gaia DR3
Radial velocity
unknown

Distance

Distance
2.670 pc · 8.71 ly · inverse parallax
Parallax (adopted)
374.4896 mas ± 0.2313 · Gaia DR3
Parallax (RECONS)
380.02 mas
Parallax (Gaia DR3)
374.4896 mas
RECONS vs Gaia
1.48 %

Photometry & astrophysics

Spectral type
DA2 · RECONS
V
8.44
M_V (RECONS)
11.34
G / BP / RP
8.524 / 8.120 / 8.399
BP − RP
-0.278
Teff (GSP-Phot)
unknown
log g / [M/H]
unknown / unknown
Mass
1.000 M☉
RUWE
2.42
Non-single star
0
Variability flag
NOT_AVAILABLE
Planets
0

Render parameters (star_params)

Teff
25200 K · spectral type (Pecaut & Mamajek 2013)
Absolute mag
11.391 (G)
Bolometric corr.
-2.425
Luminosity
0.0204 L☉
Radius
0.007493 R☉ · Gaia G + parallax + BC_G (Andrae 2018)
Disk radius
0.3225
Limb darkening u1, u2
0.2159, 0.2079
Granulation amp / freq
0.0085 / 20.376
Variability
none
Seed
838399350

Notes: orbit 8"