List of stars in Delphinus
Encyclopedia
This is the list of notable star
s in the constellation
Delphinus
, 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....
Delphinus
Delphinus
Delphinus is a constellation in the northern sky, close to the celestial equator. Its name is Latin for dolphin. Delphinus was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains among the 88 modern constellations recognized by the International Astronomical...
, 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... |
F Flamsteed designation Flamsteed designations for stars are similar to Bayer designations, except that they use numbers instead of Greek letters. Each star is assigned a number and 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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β Del Beta Delphini Beta Delphini is a binary star in the constellation of Delphinus. As a practical joke, the astronomer Niccolò Cacciatore gave it the name Rotanev, which is a reversal of his Latinized family name, Venator.In Chinese, , meaning Good Gourd, refers to an asterism consisting of β Delphini, α... |
β | 6 | 196524 | 101769 | 3.64 | 1.26 | 97 | F5IV | Rotanev, Rotanen, Venator; spectroscopic binary | ||
α Del Alpha Delphini Alpha Delphini is a multiple star in the constellation Delphinus. It also has the name Sualocin, which was given to it as a practical joke by the astronomer Niccolò Cacciatore; the name is the Latinized version of his given name, spelled backwards.In Chinese, , meaning Good Gourd, refers to an... |
α | 9 | 196867 | 101958 | 3.77 | −0.57 | 241 | B9V | Sualocin, Scalovin, Svalocin, Nicolaus; 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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ε Del Epsilon Delphini Epsilon Delphini is a blue-white giant star approximately 358 light-years away in the constellation Delphinus. It has the traditional name Deneb Dulfim , from the Arabic ذنب الدلفين ðanab ad-dulfīn "tail of the dolphin."The term ðanab ad-dulfīn or Dzaneb al Delphin was appeared in the... |
ε | 2 | 195810 | 101421 | 4.03 | −1.18 | 359 | B6III | Deneb Dulfim, Deneb, Al Dhanab al Dulfim, Dzaneb al Delphin, Cauda Delphini; suspected 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... |
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γ2 Del Gamma Delphini Gamma Delphini is a binary star system approximately 101 light-years away in the constellation of Delphinus. The star marks one corner of the asterism "Job's Coffin"... |
γ2 | 12 | 197964 | 102532 | 4.27 | 1.81 | 101 | K1IV | binary star with γ1 Del | ||
δ Del Delta Delphini Delta Delphini is a giant star in the constellation Delphinus.-References:*... |
δ | 11 | 197461 | 102281 | 4.43 | 0.45 | 203 | A7IIIp d Del | δ Sct variable Delta Scuti variable A Delta Scuti variable is a variable star which exhibits variations in its luminosity due to both radial and non-radial pulsations of the star's surface. Typical brightness fluctuations are from 0.003 to 0.9 magnitudes in V over a period of a few hours, although the amplitude and period of the... , |
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ζ Del | ζ | 4 | 196180 | 101589 | 4.64 | 0.43 | 227 | A3V | |||
ρ Aql Rho Aquilae Rho Aquilae is a star in the constellation Delphinus – it moved across the border from Aquila into Delphinus in 1992. It has the traditional name Tso Ke, from the Mandarin 左旗 zuǒqí meaning "the left flag".... |
ρ | 67 | 192425 | 99742 | 4.94 | 1.58 | 153 | A2V | Tso Ke; recently moved into Delphinus due to proper motion | ||
κ Del | κ | 7 | 196755 | 101916 | 5.07 | 2.68 | 98 | G5IV+... | |||
γ1 Del Gamma Delphini Gamma Delphini is a binary star system approximately 101 light-years away in the constellation of Delphinus. The star marks one corner of the asterism "Job's Coffin"... |
γ1 | 12 | 197963 | 102531 | 5.15 | 2.65 | 103 | A2Ia+... | binary star with γ2 Del | ||
17 Del | 17 | 199253 | 103294 | 5.19 | −0.62 | 474 | K0III | suspected variable | |||
η Del | η | 3 | 195943 | 101483 | 5.39 | 1.77 | 173 | A3IVs | suspected variable | ||
ι Del | ι | 5 | 196544 | 101800 | 5.42 | 1.74 | 177 | A2V | spectroscopic binary | ||
18 Del 18 Delphini 18 Delphini or 18 Del is a yellow giant star approximately 238 light-years away in the constellation of Delphinus. , an extrasolar planet was confirmed to be orbiting the star.- Planetary system :... |
18 | 199665 | 103527 | 5.51 | 1.19 | 238 | G6III: | optical double 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... , has a planet Extrasolar planet An extrasolar planet, or exoplanet, is a planet outside the Solar System. A total of such planets have been identified as of . It is now known that a substantial fraction of stars have planets, including perhaps half of all Sun-like stars... (b 18 Delphini b 18 Delphini b or 18 Del b is a very massive and dense planet approximately 238 light-years away in the constellation of Delphinus. The planet orbits the yellow giant star 18 Delphini. The planet has a minimum mass of 10.3 MJ and a period of 993 days. This planet was discovered on February 19,... ) |
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16 Del | 16 | 199254 | 103298 | 5.54 | 1.61 | 199 | A4V | double star | |||
13 Del | 13 | 198069 | 102633 | 5.57 | −0.42 | 513 | A0V | double star | |||
θ Del | θ | 8 | 196725 | 101882 | 5.69 | −2.32 | 1304 | K3Ib | |||
200044 | 103675 | 5.69 | −0.62 | 596 | M3III | suspected variable | |||||
193472 | 100256 | 5.96 | 1.18 | 294 | A5m | ||||||
196775 | 101909 | 5.99 | −2.01 | 1299 | B3V | double star | |||||
10 Del | 10 | 197121 | 102080 | 6.01 | 0.13 | 488 | K4III: | suspected variable | |||
15 Del | 15 | 198390 | 102805 | 6.01 | 3.66 | 96 | F5V | double star | |||
1 Del | 1 | 195325 | 101160 | 6.03 | −0.17 | 566 | A1sh | double star; emission-line star | |||
1 G. Equ in Delphinus |
199223 | 103301 | 6.04 | 0.82 | 361 | G6III-IV | double star | ||||
194012 | 100511 | 6.16 | 4.07 | 85 | F8V | ||||||
193556 | 100274 | 6.17 | 0.04 | 550 | G8III | ||||||
193373 | 100208 | 6.20 | −0.73 | 791 | M1III | ||||||
6 G. Del | 194953 | 100969 | 6.20 | 0.47 | 456 | G8III | |||||
21 G. Del | 198404 | 102833 | 6.20 | 0.29 | 495 | K0 | double star | ||||
195479 | 101213 | 6.21 | 1.08 | 346 | A1m | triple star | |||||
EU Del | 196610 | 101810 | 6.22 | 1.03 | 356 | M6III | semiregular variable, | ||||
194688 | 100807 | 6.23 | −0.75 | 813 | K0 | ||||||
7 G. Del | 194937 | 100953 | 6.23 | 1.23 | 326 | G9III | |||||
LU Del | 197249 | 102158 | 6.24 | 0.63 | 432 | G8III | semiregular variable, | ||||
201196 | 104281 | 6.27 | 1.00 | 369 | K2IV | ||||||
4 G. Del | 194526 | 100762 | 6.32 | −0.83 | 876 | K5IIIvar | suspected variable | ||||
14 Del | 14 | 198391 | 102819 | 6.32 | 0.32 | 517 | A1Vs | spectroscopic binary | |||
200430 | 103891 | 6.33 | −0.11 | 633 | M1III | suspected variable | |||||
194578 | 100781 | 6.35 | −0.64 | 815 | K5 | ||||||
17 G. Del | 198070 | 102631 | 6.38 | 0.60 | 467 | A0Vn | |||||
HD 196885 HD 196885 HD 196885 is a 6th magnitude binary star in the constellation Delphinus. According to its parallax of 29.15 milliarcseconds, it is located at a distance of 112 light years from Earth. In 2004, a planet was announced to be orbiting the star in a 386-day orbit... |
196885 | 101966 | 6.39 | 3.80 | 108 | F8IV: | binary star; has a planet (b HD 196885 Ab HD 196885 Ab is a jovian planet with at least 2.96 times the mass of Jupiter. This planet was discovered on October 23, 2007.... ) |
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9 G. Del | 195909 | 101489 | 6.42 | 0.02 | 622 | K0 | |||||
197076 | 102040 | 6.43 | 4.82 | 68 | G5V | optical double | |||||
194841 | 100876 | 6.44 | −2.09 | 1655 | K0 | ||||||
194616 | 100779 | 6.45 | −0.13 | 675 | K0III | ||||||
U Del | 197812 | 102440 | 6.74 | −1.16 | 1240 | M5II-III | semiregular variable, | ||||
HD 195019 HD 195019 HD 195019 is a star system in the constellation of Delphinus. Star B is located approximately 150 AU from Star A. This star system is located 65 light years or 20 parsecs or 0.617 exameters away from the Sun, Earth and Solar System. It is a yellow dwarf or subgiant [G3IV-V]... |
195019 | 100970 | 6.91 | 4.05 | 122 | G3IV-V | double star; has a planet (b HD 195019 b HD 195019 b is an exoplanet orbiting around HD 195019 in the binary star system. It has a minimum mass of 3.7 MJ. It orbits very close to the star. Like many planets at close distance, its orbit is circular, even more circular or less eccentric than Earth. It takes 437 hours to orbit with velocity... ) |
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HAT-P-23 | 11.94 | 1282 | G5 | has a transiting planet (b) | |||||||
WASP-2 WASP-2 WASP-2 is a magnitude 12 orange dwarf star located about 469 light-years away in the Delphinus constellation.-Planetary system:This star has one extrasolar planet WASP-2b, detected by the SuperWASP project in 2006.-Binary star:... |
11.98 | K1V | has a transiting Astronomical transit The term transit or astronomical transit has three meanings in astronomy:* A transit is the astronomical event that occurs when one celestial body appears to move across the face of another celestial body, hiding a small part of it, as seen by an observer at some particular vantage point... planet (b WASP-2b WASP-2b is an extrasolar planet orbiting the star WASP-2 located about 470 light years away in the constellation of Delphinus. It was discovered via the transit method, and then follow up measurements using the radial velocity method confirmed that WASP-2b was a planet. The planet's mass and radius... ) |