Star
! style="text-align: center; background-color: #FFFFC0;" colspan="2" | Observation dataEpoch J2000.0 (ICRS)
       Equinox J2000.0 (ICRS)
! style="text-align:left" | Constellation
! style="text-align:left" | Right ascension
! style="text-align:left" | Declination
! style="text-align:left" | Apparent magnitude (V)
! style="background-color: #FFFFC0; text-align: center;" colspan="2"| Characteristics
! style="text-align:left" | Spectral type
! style="text-align:left" | B−V 
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103 Aquarii is a single star in the equatorial constellation of Aquarius. "103 Aquarii" is the Flamsteed designation, although it also bears the Bayer designation A1 Aquarii. It is faint but visible to the naked eye as an orange hued star with an apparent visual magnitude of 5.34. Based upon an annual parallax shift of , the distance to this star is around . It is moving away from the Earth with a heliocentric radial velocity of +25 km/s.
This is classified as a K-type giant star, having evolved off the main sequence after exhausting the hydrogen at its core and expanded to 64 times the Sun's radius. The star is radiating 848 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 3,910 K.
References.
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