Home     Getting Started     To Survive in the Universe    
Inhabited Sky
    News@Sky     Astro Photo     The Collection     Forum     Blog New!     FAQ     Press     Login  

TYC 2534-590-1


Contents

Images

Upload your image

DSS Images   Other Images


Related articles

The peak brightness of SN 1937C in IC 4182 and the Hubble constant
The light curve of the Type Ia supernova SN 1937C (in IC 4182) isimportant because Sandage et al. have measured a distance to the hostgalaxy by means of Cepheid variables and thus have derived the Hubbleconstant. However, the peak brightness of SN 1937C has only been derivedwith the relatively poor original comparison star brightnesses andwithout regard to a large body of data in the literature. In this paper,I will correct these and other procedural difficulties. I find that thelate time photographic light curve appears to have a broken exponentialdecay with equivalent half-lives of 46 and 58 days with the break near300 days after maximum. I also find that the peak B-magnitude was 8.71+/- 0.14 on JD 2428770.0 +/- 1.0 at which time the B-V was -0.03 +/-0.13. With these improved peak brightnesses, the distance modulus ofSandage et al., and peak absolute magnitudes in the center of the rangeof modern estimates, I derive the Hubble constant to be 50 km/s Mpc.

Submit a new article


Related links

  • - No Links Found -
Submit a new link


Member of following groups:


Observation and Astrometry data

Constellation:Canes Venatici
Right ascension:13h04m46.54s
Declination:+37°05'58.3"
Apparent magnitude:10.539
Proper motion RA:-26.1
Proper motion Dec:-43.2
B-T magnitude:11.312
V-T magnitude:10.603

Catalogs and designations:
Proper Names   (Edit)
TYCHO-2 2000TYC 2534-590-1
USNO-A2.0USNO-A2 1200-07008314
HIPHIP 63817

→ Request more catalogs and designations from VizieR