SunPy sun¶

The sun submodule contains constants, parameters and models of the Sun.

sunpy.sun.sun Module¶

Deprecated since version 1.0: This module is deprecated and may be removed in a future version. Use sunpy.coordinates.sun instead.

This module provides Sun-related parameters.

Functions¶

`solar_semidiameter_angular_size`([t])	Deprecated since version 1.0.
`position`([t, equinox_of_date])	Deprecated since version 1.0.
`carrington_rotation_number`([t])	Deprecated since version 1.0.
`true_longitude`([t])	Deprecated since version 1.0.
`apparent_longitude`([t])	Deprecated since version 1.0.
`true_latitude`([t])	Deprecated since version 1.0.
`apparent_latitude`([t])	Deprecated since version 1.0.
`mean_obliquity_of_ecliptic`([t])	Deprecated since version 1.0.
`true_rightascension`([t, equinox_of_date])	Deprecated since version 1.0.
`true_declination`([t, equinox_of_date])	Deprecated since version 1.0.
`true_obliquity_of_ecliptic`([t])	Deprecated since version 1.0.
`apparent_rightascension`([t, equinox_of_date])	Deprecated since version 1.0.
`apparent_declination`([t, equinox_of_date])	Deprecated since version 1.0.
`print_params`([t])	Deprecated since version 1.0.

sunpy.sun.constants Module¶

This module provides fundamental solar physical constants. The following constants are available:

Name	Value	Unit	Description
mass	1.98847542e+30	kg	Solar mass
radius	695700000	m	Nominal solar radius
luminosity	3.828e+26	W	Nominal solar luminosity
mean distance	1.49597871e+11	m	Astronomical Unit
perihelion distance	1.471e+11	m	Perihelion Distance
aphelion distance	1.521e+11	m	Aphelion Distance
age	4.6e+09	year	Age of the Sun
solar flux unit	1e-22	W m-2 Hz-1	Solar flux unit
visual magnitude	-26.75		Apparent visual magnitude
average angular size	959.63	arcsec	Semidiameter
surface area	6.087e+18	m**2	Surface area
average density	1409	kg m**-3	Mean density
surface gravity	274	m s**-2	Surface gravity
moment of inertia	5.7e+54	kg m**-2	Moment of inertia
volume	1.4122e+27	m**3	Volume
escape velocity	617700	m s**-1	Escape velocity at surface
oblateness	8.01	marcsec	oblateness
metallicity	0.0122		Metallicity
sunspot cycle	11.4	year	Average duration of sunspot cycle
average intensity	20090000	W m-2 sr-1	Mean Intensity
effective temperature	5778	K	Effective black-body temperature
mass conversion rate	4.3e+09	kg s**-1	Mass conversion rate
center density	162200	kg m**-3	Center density
center temperature	15710000	K	Center temperature
absolute magnitude	4.83		Absolute magnitude
mean energy production	0.0001937	J kg**-1	mean energy production
ellipticity	5e-05		ellipticity
GM	132712000	km3 s-2	standard gravitational parameter

Functions¶

`get`(key)	Retrieve a constant by key.
`find`([sub])	Return list of constants keys containing a given string.
`print_all`()	Provides a table of the complete list of constants.

sunpy.sun.models Module¶

Solar Physical Models¶

This module contains standard models of the Sun from various sources.

All data is saved in astropy.table.QTable with an added attribute:

source : names the source of the data

Object¶

interiorastropy.table.QTable
The standard model of the solar interior.

evolutionastropy.table.QTable
The evolution as a function of time of the Sun.

References

Adapted from Turck-Chieze et al. (1988) with composition: X = 0.7046, Y = 0.2757, Z = 0.0197