Menu

Gamma Sagittae — Star in Sagitta

Magnitude 3.5m Star Sagitta (Sge) Visible
Star Map
+ List + Plan

Observe

1Physical Properties

Magnitude 3.47
Spectral Type M0- III
Star Color Red (B-V 1.57)
Distance 251 ly

2Position & Identifiers

RA 19h 58m 45.4s
Dec +19° 29' 32.0"
Constellation Sagitta (Sge)
HR 7635
HIP 98337
HD 189319
SAO 105500
Bayer Gamma
Flamsteed 12 Sge
SIMBAD

3How easy to spot?

Sign in and configure your equipment and default location to see a personalized row.
Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Easy Easy Medium+
50mm finder Easy Easy Easy
150mm scope Easy Easy Easy
Easy Medium Hard Very hard Impossible

Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs

4Visibility

Set a location in User Settings to see visibility data.

Best season Jun – Aug (peak: Jul)

5Survey Image

Loading survey image…

Explore

7

Size Comparison

Querying VizieR for stellar data…
8

Compare Stars

9

Spectral Classification

10

Hertzsprung-Russell Diagram

Loading HR diagram…
Read: The Hertzsprung-Russell Diagram — Reading Stars Like a Map
11

Stellar Lifecycle

12

Blackbody Spectrum

13

Stellar Absorption Spectrum

Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.

14

Stellar Fusion

Discover

15Stellar Notes

Hyades group.
Ultraviolet FeII emission.
16

Light Travel Time Machine

17

Relativistic Travel

Nearby in the Sky

Other targets within a few degrees — pan your scope a little and keep exploring.

Visibility scores assume a 150 mm Newton at Bortle 4.

M71
Angelfish Cluster
Easy
Globular cluster — dense ball of ancient stars
Globular Cluster mag 8.2 1.4° Sagitta
9 Sge
Easy
Hot blue O-type star
Star mag 6.23 1.7° Sagitta
10 Sge
Medium+
Pulsating variable, period 8.4d
Variable Star mag 5.36 2.9° Sagitta
M27
NGC 6853
Easy
Planetary nebula — try an OIII filter
Planetary Nebula mag 8.1 3.2° Vulpecula
NGC 6830
Easy
Open cluster
Open Cluster mag 7.9 4.0° Vulpecula
Show on Map

Explore Nightbase

Related knowledge, tools, and stories — no observation planning required.

Arthur Eddington
1919 eclipse expedition confirming general relativity; first theory of stellar interiors; the Eddington limit
Biography
The Life of Stars
From birth in a nebula to spectacular death — how stars are born, shine, swell, and die, and how to read the clues in their starlight.
Article
Sagitta
Mythology, bright stars, and deep-sky highlights.
Constellation
}