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physical object > natural object > celestial body > collection of stars > star system > binary star > close binary > nova > slow nova
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slow nova comparison table
Subject has energy release has spectral type has extent has age has surface temperature has orbital period become has velocity has surface density is an instance of has star surface temperature has optical brightness variation has V magnitude has parallax has observational problem has light curve has position on celestial sphere has location has erruption date has angular momentum has radiation at surface has acronym has B magnitude has temperature has primary star has abundance has recovery time has spectra has period has secondary star has proper motion has amplitude has energy source has energy production has eclipse duration has catalog has absolute magnitude has outburst start time has U magnitude has volume has momentum has peak brightness has material has apparent magnitude has mass has name designated with has emission line has observable variation time scale has use has synonym has definition has number of star
DQ Herculis1044 ergs   greater than 1000 Kelvin4h39mnaked eye stardetermined from proper motion and radial velocitywhich depends on luminosity classeclipsing binary 0.2 magnitudes or greater from the point of view of Earth's orbitsome difficulty in distinguishing between various kinds from the point of view of Earthor center of gravity1934 which is diffused out from the hotter coreCV  white dwarfhalf the stars in the solar neighborhood are members of star systems   M dwarf  gravitational contraction and or fusionwhich takes place primarily within the core star catalog      hydrogen, helium greater than 0.08 the sun's mass
  1. R, S, T, U, V, W, X, Y, or Z and the genitive of the latin constellation name
  2. RR, RS, RT, RU, RV, RW, RX, RY, or RZ and the genitive of the latin constellation name when the single letter designations are exhausted
  3. AA...AZ, BB...BZ, etc. (omitting J), which ends with QQ...QZ and the genitive of the latin constellation namewhen the RR...RZ designations are exhausted
  4. V 335, V 336, etc., when the double letter designations are exhausted
 within a period of decadesnova peak brightness distance determinationNova Herculis 1934A slow nova which also happens to be an eclipsing binary. It also has a regular flickering period of 71 seconds, the shortest period of regular variations known, except for pulsars and compact X-ray objects. It is probably composed of an M dwarf and a white dwarf with an accretion disk.2

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