List of stars in Delphinus
Encyclopedia
This is the list of notable star
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
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...

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...

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...

,
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,...

)
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....

)
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...

)
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...

)
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