सूर्द्यः: Difference between revisions

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००:४९, १४ ज्यानुवरी २०११तक्कया संस्करण

The Sun
The Sun
Observation data
Mean distance from
Earth
149.6×10 km
(92.95×10 mi)
(8.31 minutes at the speed of light)
Visual brightness (V) −26.8m
Absolute magnitude 4.8m
Spectral classification G2V
Orbital characteristics
Mean distance from
Milky Way core
~2.5×10१७ km
(26,000-28,000 light-years)
Galactic period 2.25-2.50×10 a
Velocity 217 km/s orbit around the center of the Galaxy, 20 km/s relative to average velocity of other stars in stellar neighborhood
Physical characteristics
Mean diameter 1.392×10 km
(109 Earth diameters)
Circumference 4.373×10 km
(342 Earth diameters)
Oblateness 9×10−6
Surface area 6.09×10१२ km²
(11,900 Earths)
Volume 1.41×10१८ km³
(1,300,000 Earths)
Mass 1.988 435×10३० kg

(332,946 Earths)

Density 1.408 g/cm³
Surface gravity 273.95 m s-2

(27.9 g)

Escape velocity
from the surface
617.54 km/s

(55 Earths)

Surface temperature 5785 K
Temperature of corona MK
Core temperature ~13.6 MK
Luminosity (Lsol) 3.827×10२६ W
~3.75×10२८ lm
(~98 lm/W efficacy)
Mean Intensity (Isol) 2.009×10 W m-2 sr-1
Rotation characteristics
Obliquity 7.25°
(to the ecliptic)
67.23°
(to the galactic plane)
Right ascension
of North pole[१]
286.13°
(19 h 4 min 30 s)
Declination
of North pole
+63.87°
(63°52' North)
Rotation period
at equator
25.3800 days
(25 d 9 h 7 min 13 s)[१]
Rotation velocity
at equator
7174 km/h
Photospheric composition (by mass)
Hydrogen 73.46 %
Helium 24.85 %
Oxygen 0.77 %
Carbon 0.29 %
Iron 0.16 %
Neon 0.12 %
Nitrogen 0.09 %
Silicon 0.07 %
Magnesium 0.05 %
Sulphur 0.04 %

सूर्द्य छगु नगु खः। थ्व नगु पृथ्वीयागु दक्ले नापं यागु नगु खः। थुकिगु दथुइ हाइड्रोजनहेलियम वायु दु। थ्व नगुय् जुया च्वंगु न्युक्लियर फ्युजियन रसायनिक प्रक्रिया नं उत्पत्ति जुगु उर्जा ज:तापयागु रुपे पृथ्वी तक्क थ्येनि। वैज्ञानिकतेगु कथलं थ्व छगु मध्यम ग्वयागु नगु खः। ak:Ewia

  1. १.० १.१ Seidelmann, P. K.; V. K. Abalakin; M. Bursa; M. E. Davies; C. de Bergh; J. H. Lieske; J. Oberst; J. L. Simon; E. M. Standish; P. Stooke; P. C. Thomas (2000). Report Of The IAU/IAG Working Group On Cartographic Coordinates And Rotational Elements Of The Planets And Satellites: 2000. 2006-03-22 कथं।