Alpha Vulpeculae, also named Anser, is the brightest star in the constellation of Vulpecula. It is approximately 297 light-years from Earth. It forms a wide optical binary with 8 Vulpeculae. Alpha Vulpeculae is a red giant of spectral class M1 and has apparent magnitude +4.4.
Mass: 2.983 × 10^30 kg (1.5 M☉)
Surface temperature: 3,850 K
Magnitude: 4.4
Radius: 31.31 million km (45 R☉)
Constellation: Vulpecula
Proper motion (μ): RA: –126.13 ± 0.19 mas/yr; Dec.: –107.44 ± 0.22 mas/yr