- Theta Sagittarii
Starbox short
name=θ¹ Sagittarii
epoch=J2000.0
constell=Sagittarius
ra=19h 59m 44.2s
dec=-35° 16' 35"
spectral=B2.5IV
appmag_v=+4.37
dist_ly=618 ± 105
dist_pc=189 ± 32
names=HR 7623, HD 189103,
SAO 211716, HIP 98412TheBayer designation Theta Sagittarii (θ Sgr / θ Sagittarii) is shared by twostar system s, θ¹ Sagittarii and θ² Sagittarii, in theconstellation Sagittarius. The two stars are separated by 0.58° on the sky.θ¹ Sagittarii
Theta-1 Sagittarii is a
spectroscopic binary lying 617light years fromEarth . The primary star, θ¹ Sagittarii A, is a spectral type B2.5subgiant which has anapparent magnitude of +4.37. The companion star, θ¹ Sagittarii B, is approximately 0.2arcseconds from the primary, which puts them 31 Astronomical Units (AU) apart (aSun -Neptune distance).θ² Sagittarii
Starbox short
name=θ² Sagittarii
epoch=J2000.0
constell=Sagittarius
ra=19h 59m 51.3s
dec=-34° 41' 52"
spectral=A4/A5IV
appmag_v=+5.30
dist_ly=157 ± 7
dist_pc=48 ± 2
names=HR 7624, HD 189118,
SAO 211717, HIP 98421,
CCDM 19599-3442Theta-2 Sagittarii is a
triple star system 157light years fromEarth . θ² Sagittarii A is a spectral type A4/5subgiant which has anapparent magnitude of +5.30. Orbiting the primary with a separation on the sky of 30arcseconds , or at least 1400 AU, isbinary star comprised of θ² Sagittarii B, a magnitude +10.8 star, and θ² Sagittarii C, with a magnitude of +11.5. B and C are 1.2 arcseconds, or approximately 58 AU apart.
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