Star in the constellation Vela
! style="text-align: center; background-color: #FFFFC0;" colspan="2" | Observation dataEpoch J2000      Equinox J2000
! 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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HD 89998 (r Velorum) is a single star in the southern constellation of Vela. It is a faint star but visible to the naked eye with an apparent visual magnitude of 4.82. The distance to HD 89998, as determined from its annual parallax shift of , is 205 light years. The star is moving further from the Earth with a heliocentric radial velocity of +21 km/s, having come within some 1.552 million years ago.
This is an evolved giant star with a stellar classification of K1 III. The measured angular diameter of this star, after correcting for limb darkening, is . At the estimated distance of this star, this yields a physical size of 11.6 times the radius of the Sun. It is radiating 54 times the Sun's luminosity from its enlarged photosphere at en effective temperature of 4,812 K.
References.
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