Pi³ Orionis, also named Tabit, is a star in the equatorial constellation of Orion. At an apparent visual magnitude of 3.16, it is readily visible to the naked eye and is the brightest star in the lion's hide that Orion is holding. As measured using the parallax technique, it is 26.32 light-years distant from the Sun.
Sigma Virginis is a star in the zodiac constellation of Virgo. It can be faintly seen with the naked eye with a baseline apparent visual magnitude of 4.86. Based upon parallax measurements, the distance to this star is roughly 680 light years.
Eta Arae, Latinized from η Arae, is the Bayer designation for a single star in the southern constellation of Ara. It is approximately 299 light-years from Earth and is visible to the naked eye with an apparent visual magnitude of 3.76. The star is moving away from the Sun with a radial velocity of +9 km/s.
Lambda Arietis is the Bayer designation for a double star in the northern constellation of Aries. Based upon an annual parallax shift of 25.32 arcseconds, this system is approximately 129 light-years distant from Earth. The pair have a combined apparent visual magnitude of 4.79, which is bright enough to be viewed with the naked eye. Because the yellow secondary is nearly three magnitudes fainter than the white primary, they are a challenge to split with quality 7× binoculars and are readily resolvable at 10×.
HR 8832 is a main sequence star in the constellation of Cassiopeia. It is smaller and less luminous than our Sun, with a spectral class of K3V, which makes it an orange-red hued star. HR 8832 is relatively close to our system, with an estimated distance of 21.25 light years. This star is close to the limit of apparent magnitude that can still be seen by the unaided eye. The limit is considered to be magnitude 6 for most observers.
Alpha Lyncis is the brightest star in the northern constellation of Lynx with an apparent magnitude of +3.13. Unusually, it is the only star in the constellation that has a Bayer designation. Based upon parallax measurements, this star is located about 203 light-years from the Earth.
HD 130458 is a double star in the southern circumpolar constellation of Apus. The pair have an angular separation of 2.167″.
V1291 Aquilae is a chemically peculiar Ap star. This is a variable star of type Alpha² Canum Venaticorum with a variability period of 223.826 days. This is most likely the mean rotational period of the star.
HD 183144 is suspected variable star in the equatorial constellation of Aquila.
HD 153053 is double star in the southern constellation of Ara. The brighter component is an A-type main sequence star that may be evolving into a subgiant. It has a twelfth magnitude visual companion at an angular separation of 24.7″ along a position angle of 52°. Mostly likely the two are isolated stars that happen to lie near the same line of sight.
HD 153201 is a Bp star in the southern constellation of Ara. It is chemically peculiar star that displays an anomalous abundance of the element silicon in its spectrum. This is a suspected variable star of the type known as Alpha² Canum Venaticorum. There is a magnitude 9.86 companion star at an angular separation of 2.30″ along a position angle of 131°.
Kappa2 Apodis is the Bayer designation for a double star in the southern circumpolar constellation of Apus. It is located at a distance of roughly 780 light-years from Earth, based upon parallax measurements with a 7% margin of error. The pair have a combined apparent visual magnitude of +5.65, which makes the system faintly visible to the naked eye.
HD 23089 is a spectroscopic binary star in the northern constellation of Camelopardalis. The system consists of a cooler giant star and hotter main sequence companion, with the pair orbiting each other every 6,150 days.
HD 24480 is a double star in the northern constellation of Camelopardalis. The brighter component is a giant star with a stellar classification of K4III and an apparent magnitude of 5.20. The pair have an angular separation of 1.71″.
HD 49933 is a Sun-like star in the equatorial constellation of Monoceros, the unicorn. The HD designation indicates the identifier of the star found in the Henry Draper catalogue. At an apparent magnitude of 5.8, this star can just be seen with the naked eye under suitably dark conditions. Based upon parallax measurements from the Hipparcos mission, the distance to HD 49933 is about 97 light-years with a 1% margin of error. It has an 11.3 magnitude common proper motion companion at an angular separation of 5.9 arcseconds, which may make this a binary star system if the pair are gravitationally bound.
Eta Gruis, Latinized from η Gruis, is a solitary, orange-hued star in the southern constellation of Grus. It is visible to the naked eye with an apparent visual magnitude of 4.85. Based upon an annual parallax shift of 7.86 mas as seen from the Earth, the system is located about 410 light years from the Sun. This is an evolved K-type giant star with a stellar classification of K2 III CNIV, indicating this is an intermediate CN star. It is a periodic microvariable with an amplitude of 0.0055 magnitude and a frequency of 0.36118 cycles per day.
γ Hydri, Latinised as Gamma Hydri, is a solitary, red-hued star in the constellation Hydrus. It has an apparent visual magnitude of 3.26, making it easily visible to the naked eye at night. Based upon an annual parallax shift of 15.24 mas as measured from Earth, the system is located about 214 light years from the Sun.
Pi6 Orionis (π6 Ori, π6 Orionis) is a solitary star in the eastern part of the constellation Orion. It is visible to the naked eye with an apparent visual magnitude of 4.469. Based upon an annual parallax shift of 3.45 mas, it is around 950 light years from the Sun. At that distance, the visual magnitude of the star is reduced by an interstellar absorption factor of 0.52.
ξ Gruis, Latinised as Xi Gruis, is a solitary, orange-hued star in the southern constellation of Grus. With an apparent magnitude of 5.3 and a stellar classification of K0 III, it is an evolved giant star located around 470 light-years distant from Earth.
ν Gruis, Latinised as Nu Gruis, is a solitary, yellow-hued star in the southern constellation of Grus. It is visible to the naked eye with an apparent visual magnitude of 5.47. The distance to this star, as determined using an annual parallax shift of 11.44 mas as seen from the Earth, is 285 light years. This is an evolved G-type giant star with a stellar classification of G9 III, a star that has used up its core hydrogen and has expanded. It has a visual magnitude 12.50 companion, not visible even through binoculars, located at an angular separation of 21.70 arc seconds along a position angle of 74°, as of 2011.
