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AsteriaStar
Red supergiant · Sagittarius

35 Sagittarii

Knowledge graph35 SgrHR 7120HD 175190HIP 92845

Scientific overview

35 Sagittarii is a red supergiant in the constellation Sagittarius (Sagittarii), lying about 273.85 light-years from Earth.

Class K. Cooler orange stars. Long-lived and abundant; many are stable hosts for planets. Such stars have surface temperatures around 3,700–5,200 K and appear orange to the eye.

Physical properties

Spectral typeK1Ib/II
Luminosity classIb
Apparent magnitude5
Absolute magnitude0.38
Luminosity (Sun = 1)61.376
Colour index (B−V)1.348
Distance273.85 ly (83.96 pc)

Values are real catalogue data; fields without a reliable value are omitted, never estimated.

Precision measurements

Astrometry and astrophysics from SIMBAD

Parallax11.4104 ± 0.752 masSIMBAD · measured
Proper motion (RA)104.7 mas/yrSIMBAD · measured
Proper motion (Dec)-28.501 mas/yrSIMBAD · measured
Radial velocity-114.2 ± 0.49 km/sSIMBAD · measured
Spectral typeK3-II-III:CN1Ba1SIMBAD · catalogued
Right ascension (ICRS)283.8 degSIMBAD · measured
Declination (ICRS)-22.6713 degSIMBAD · measured
Full field-level provenance
  • Parallax: Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · plx_value · 2020yCat.1350....0G · direct catalogue measurement · retrieved 2026-07-11
  • Proper motion (RA): Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · pmra · 2020yCat.1350....0G · direct catalogue measurement · retrieved 2026-07-11
  • Proper motion (Dec): Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · pmdec · 2020yCat.1350....0G · direct catalogue measurement · retrieved 2026-07-11
  • Radial velocity: Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · rvz_radvel · 2018yCat.1345....0G · direct catalogue measurement · retrieved 2026-07-11
  • Spectral type: Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · sp_type · 1989ApJS...71..245K · catalogue identifier/value · retrieved 2026-07-11
  • Right ascension (ICRS): Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · ra · 2020yCat.1350....0G · direct catalogue measurement · retrieved 2026-07-11
  • Declination (ICRS): Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · dec · 2020yCat.1350....0G · direct catalogue measurement · retrieved 2026-07-11

measured = direct catalogue value · estimated = Bayesian inference (Bailer-Jones distance) · modeled = model output (Gaia GSP-Phot). Fields a source did not provide are omitted, never invented.

Evolution

A red supergiant is a colossal, cool, luminous evolved star. The largest known stars are red supergiants, and many end as supernovae.

Location in the sky

Constellation
Sagittarius
Hemisphere
Southern
Best seen
Summer (N. evening sky)
RA / Dec
18.9186h / -22.6713°

Knowledge connections

  • In constellationSagittarius

Sources

The primary and reference sources this topic draws on.

  • HYG DatabaseHYG Database (Hipparcos + Yale Bright Star + Gliese), by D. Nash / astronexus

    Aggregated, openly-licensed star catalogue combining Hipparcos, the Yale Bright Star Catalogue, and the Gliese Catalogue of Nearby Stars.

  • HipparcosESA Hipparcos space astrometry mission

    High-precision parallax, magnitude, and position for ~118,000 stars.