Struve 2398

Struve 2398

Starbox begin
name=Struve 2398 A/B
Starbox image


caption = Struve 2398 A/B
Starbox observe
epoch=J2000
ra=RA|18|42|46.7/46.9
dec=DEC|+59|37|49/36
appmag_v=8.94/9.70
constell=Draco
Starbox character
class=M3 V/M3.5 V
b-v=1.53/1.59
u-b=1.11/1.14
variable=Flare star
Starbox astrometry
radial_v=-0.9
prop_mo_ra=-1327
prop_mo_dec=1802
gal_lat= +24.2307 / +24.2295
gal_lon=089.2883 / 089.2847
parallax=283.00
p_error=1.69
absmag_v=11.20/11.96
Starbox detail
mass=0.36 / 0.30
radius=0.54 / 0.55
luminosity=0.00027 / 0.00013
temperature=2.000–3.500
metal=?
rotation=?
age=?
Starbox visbin
name=Struve 2398 B
period=408
axis=12.1
eccentricity=0.53
inclination=356
node=
periastron=
Starbox reference
Simbad=HD+173740
Starbox catalog
names=Σ 2398 A/B, HD 173739/173740, GCTP 4330.00 A/B, LHS 58/59, GJ 725 A/B, Gl 227-046/227-047, HIP 91768/91772, A: BD +59°1915, Vyssotsky 184.
Starbox reference
Simbad=HD+173739

Struve 2398 is a binary star system in the constellation Draco. Both stars are red dwarfs and both display variability common to flare stars. The orbital period for the pair is about 408 years, with an average distance of about 56 astronomical units, and the eccentricity of the orbit is 0.53.

ee also

* List of nearest stars

External links

* [http://www.solstation.com/stars/st2398ab.htm SolStation entry]
* http://www.daviddarling.info/encyclopedia/S/Struve2398.html
* http://www.richweb.f9.co.uk/astro/nearby_stars.htm
* http://jumk.de/astronomie/near-stars/struve-2398.shtml


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