List of stars in Apus
Encyclopedia
This is the list of notable star
s in the constellation
Apus
, sorted by decreasing brightness.
Star
A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth...
s in the constellation
Constellation
In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....
Apus
Apus
Apus is a faint constellation in the southern sky, first defined in the late 16th century. Its name means "no feet" in Greek, and it represents a bird-of-paradise . It is bordered by Triangulum Australe, Circinus, Musca, Chamaeleon, Octans, Pavo and Ara...
, sorted by decreasing brightness.
Name | B Bayer designation A Bayer designation is a stellar designation in which a specific star is identified by a Greek letter, followed by the genitive form of its parent constellation's Latin name... |
G. Gould designation Gould designations for stars are similar to Flamsteed designations in the way that they number stars within a constellation in increasing order of right ascension. Each star is assigned an integer , followed by " G. " , and then the Latin genitive of the constellation it lies in... |
HD Henry Draper Catalogue The Henry Draper Catalogue is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension , published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the... |
HIP | RA Right ascension Right ascension is the astronomical term for one of the two coordinates of a point on the celestial sphere when using the equatorial coordinate system. The other coordinate is the declination.-Explanation:... |
Dec Declination In astronomy, declination is one of the two coordinates of the equatorial coordinate system, the other being either right ascension or hour angle. Declination in astronomy is comparable to geographic latitude, but projected onto the celestial sphere. Declination is measured in degrees north and... |
vis. mag. Apparent magnitude The apparent magnitude of a celestial body is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere... |
abs. mag. Absolute magnitude Absolute magnitude is the measure of a celestial object's intrinsic brightness. it is also the apparent magnitude a star would have if it were 32.6 light years away from Earth... |
Dist. (ly) | Sp. class Stellar classification In astronomy, stellar classification is a classification of stars based on their spectral characteristics. The spectral class of a star is a designated class of a star describing the ionization of its chromosphere, what atomic excitations are most prominent in the light, giving an objective measure... |
Notes |
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α Aps Alpha Apodis Alpha Apodis is the brightest star in the constellation of Apus. It is a K-type giant star with an apparent visual magnitude of approximately 3.825. It is approximately 410 light-years from the Earth.... |
α | 14 | 129078 | 72370 | 3.83 | −1.67 | 411 | K5III | |||
γ Aps Gamma Apodis Gamma Apodis is a star in the constellation Apus.Gamma Apodis is a yellow G-type giant with an apparent magnitude of +3.86. It is approximately 160 light years from Earth.-References:*... |
γ | 44 | 147675 | 81065 | 3.86 | 0.41 | 159 | K0IV SB | |||
β Aps Beta Apodis Beta Apodis is a star in the constellation Apus. It is an orange K-type giant with an apparent magnitude of +4.23, and is approximately 158 light years from Earth.-References:*... |
β | 47 | 149324 | 81852 | 4.23 | 0.81 | 158 | K0III | double star Double star In observational astronomy, a double star is a pair of stars that appear close to each other in the sky as seen from Earth when viewed through an optical telescope. This can happen either because the pair forms a binary star, i.e... |
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δ1 Aps | δ1 | 40 | 145366 | 80047 | 4.68 | −2.17 | 765 | M4-M5III | visual double star with δ2 Aps; irregular variable Irregular variable An irregular variable is a type of variable star in which variations in brightness show no regular periodicity. There are two main sub-types of irregular variable: eruptive and pulsating.Eruptive irregular variables are divided into three categories:... , |
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ζ Aps Zeta Apodis Zeta Apodis is a star in the constellation Apus.Zeta Apodis is an orange K-type giant with an apparent magnitude of +4.76. It is approximately 312 light years from Earth.-References:* *... |
ζ | 60 | 156277 | 84969 | 4.76 | −0.14 | 312 | K1III | |||
η Aps Eta Apodis Eta Apodis is a star in the constellation Apus. It is approximately 140 light years from Earth.The stellar classification shows this is an Am star, which means it is chemically peculiar with magnetic lines in the spectrum. Based upon observations with the Spitzer Space Telescope, this system is... |
η | 6 | 123998 | 69896 | 4.89 | 1.73 | 140 | A2m... | |||
ε Aps Epsilon Apodis Epsilon Apodis is a star in the constellation Apus.Epsilon Apodis is a blue-white B-type main sequence dwarf with a mean apparent magnitude of +5.06. It is approximately 551 light years from Earth. It is classified as a Gamma Cassiopeiae type variable star and its brightness varies by 0.05... |
ε | 9 | 124771 | 70248 | 5.06 | −1.08 | 551 | B4V | Be star Be star A Be star is a B-type star with prominent emission lines of hydrogen in its spectrum. The designation is combined by the spectral class, B, and the lowercase e denoting emission in the spectral classification system. Line emission from other atomic ions might be present as well, but is typically... ; γ Cas variable, |
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δ2 Aps | δ2 | 41 | 145388 | 80057 | 5.27 | −1.27 | 663 | K3III | visual double star with δ1 Aps | ||
R Aps R Apodis R Apodis is a star in the constellation Apus.R Apodis is an orange K-type giant with an apparent magnitude of +5.37. It is approximately 428 light years from Earth. Although it carries the variable star designation R Apodis, it is now not thought to be a variable star.-References:*... |
18 | 131109 | 73223 | 5.37 | −0.22 | 428 | K4III | not variable Variable star A star is classified as variable if its apparent magnitude as seen from Earth changes over time, whether the changes are due to variations in the star's actual luminosity, or to variations in the amount of the star's light that is blocked from reaching Earth... despite designation |
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ι Aps Iota Apodis Iota Apodis is a double or multiple star system in the constellation Apus. It is approximately 1140 light years from Earth. The double star is composed of two blue-white B-type main sequence dwarfs with apparent magnitudes of +5.9 and +6.4. The stars are separated by 0.121 arcseconds on the sky... |
ι | 58 | 156190 | 84979 | 5.39 | −2.34 | 1144 | B8/B9Vn... | binary star Binary star A binary star is a star system consisting of two stars orbiting around their common center of mass. The brighter star is called the primary and the other is its companion star, comes, or secondary... |
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κ1 Aps Kappa¹ Apodis Kappa1 Apodis is a star approximately 1020 light years from Earth. It is a blue-white B-type subgiant with a mean apparent magnitude of +5.40. It is classified as a Gamma Cassiopeiae type variable star and its brightness varies from magnitude +5.43 to +5.61. A companion star is a 12th magnitude... |
κ1 | 29 | 137387 | 76013 | 5.40 | −2.07 | 1019 | B1npe | double star; Be star; γ Cas variable, | ||
45 | 148488 | 81141 | 5.50 | −1.80 | 942 | K1IIICN... | |||||
17 | 130458 | 72833 | 5.59 | 0.63 | 320 | G5III | double star | ||||
κ2 Aps Kappa² Apodis Kappa-2 Apodis is a double star approximately 735 light years from Earth. The brighter component is a blue-white B-type giant with an apparent magnitude of +5.64. Its lower magnitude companion is an orange K-type main sequence dwarf with an apparent magnitude of 12.5. It is 15 arcseconds away... |
κ2 | 33 | 138800 | 76750 | 5.64 | −1.12 | 734 | B8IVe | triple star | ||
θ Aps Theta Apodis Theta Apodis is a star in the constellation Apus and is located approximately 328 light years from Earth. It is a M-type red giant with a mean apparent magnitude of +5.69. It is classified as a semiregular variable star and its brightness varies by 0.56 magnitudes with a period of 119... |
θ | 4 | 122250 | 68815 | 5.69 | 0.67 | 328 | M6.5III | semiregular variable, | ||
38 | 143346 | 78868 | 5.70 | 0.97 | 288 | K1IIICNII | |||||
NO Aps NO Apodis NO Apodis is semi-regular pulsating star.-References:*... |
59 | 156513 | 85760 | 5.83 | −1.15 | 811 | M3III | semiregular variable, | |||
66 | 164712 | 89115 | 5.86 | 1.41 | 253 | K3III | double star | ||||
67 | 165259 | 89234 | 5.86 | 2.80 | 133 | F5V | double star | ||||
19 | 131425 | 73415 | 5.92 | −1.23 | 876 | G8II | |||||
34 | 138867 | 76877 | 5.95 | 0.64 | 377 | B9V | |||||
5 | 122862 | 69090 | 6.02 | 3.73 | 93 | G1V | |||||
25 | 133981 | 74421 | 6.02 | −1.06 | 849 | B8/B9III | |||||
11 | 126209 | 70874 | 6.06 | 0.04 | 522 | K0/K1III | |||||
63 | 161988 | 87926 | 6.08 | −0.23 | 595 | K2III | double star | ||||
3 | 121439 | 68431 | 6.09 | −0.65 | 728 | B9III | |||||
32 | 138289 | 76664 | 6.19 | 1.10 | 339 | K2II | |||||
20 | 131551 | 73394 | 6.20 | 0.15 | 529 | B9V | double star | ||||
55 | 154556 | 84158 | 6.21 | 1.99 | 228 | K1IVCN... | |||||
56 | 154972 | 84510 | 6.24 | 1.25 | 324 | A0V | |||||
12 | 128294 | 71870 | 6.34 | 0.05 | 592 | B9III | |||||
65 | 162337 | 88599 | 6.37 | −0.89 | 924 | K3/K4III | |||||
30 | 137366 | 75959 | 6.39 | −1.15 | 1052 | B3V | |||||
35 | 141846 | 78360 | 6.40 | 1.76 | 276 | F3IV | double star | ||||
8 | 124639 | 70418 | 6.42 | −0.74 | 881 | B8V | emission-line star | ||||
15 | 129899 | 72670 | 6.44 | −0.76 | 898 | Ap... | |||||
50 | 152010 | 82944 | 6.46 | −2.08 | 1663 | A5IV/V | double star | ||||
7 | 124099 | 69778 | 6.48 | −2.82 | 2362 | K2IIp | |||||
61 | 159558 | 86510 | 6.48 | 1.15 | 379 | G8III | |||||
HD 137388 | 137388 | 76351 | 8.71 | 124 | K0/K1V | has a planet Planet A planet is a celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.The term planet is ancient, with ties to history, science,... (b) |