star Class Reference

Star object. More...

#include <sc_star_catalog.h>

Public Member Functions
	star ()
	Default constructor.
	star (int id, double VM, double right_ascension, double declination)
	Constructor. More...
void	set_motion_terms (double parallax, double pm_ascension, double pm_declination, double radialV)
	Set the terms for stellar reduction. More...
ml_matrix	CalculateVector (double jd_now, double jd_catalog) const
	Calculate the star vector for a given date. More...
ml_matrix	UnitVector (void) const
	Calculate the unit vector from the catalog right ascension and declination. More...
int	get_id () const
	Get the star's (Hipparcos) id. More...
double	get_ascension () const
	Star right ascnension (rad) More...
double	get_declination () const
	Star declination (rad) More...
double	get_magnitude () const
	Visual magnitude () More...

Detailed Description

Star object.

Includes the terms for correcting the star vector for proper motion.

Todo:

: account for full stellar reduction.

Constructor & Destructor Documentation

star()

star::star	(	int	id,
		double	VM,
		double	right_ascension,
		double	declination
	)

Constructor.

Parameters

id	Integer ID of star
right_ascension	Right ascension, radians
declination	Declination, radians
VM	Visual magnitude

Member Function Documentation

set_motion_terms()

void star::set_motion_terms	(	double	parallax,
		double	radialV,
		double	pm_ascension,
		double	pm_declination
	)

Set the terms for stellar reduction.

Parameters

parallax
radialV
pm_ascension
pm_declination

CalculateVector()

ml_matrix star::CalculateVector	(	double	jd_now,
		double	jd_catalog
	)		const

Calculate the star vector for a given date.

The star unit vector using the right ascension and declination of date.

The default catalog date is for Hipparcos, 2448347.75, which is 1991.25

Parameters

jd_now	Current Julian date
jd_catalog	Catalog Julian date

Returns

Star unit vector corrected for proper motion

References PI, and ra_dec_to_u().

UnitVector()

ml_matrix star::UnitVector

(

void

)

const

Calculate the unit vector from the catalog right ascension and declination.

The star unit vector using the catalog right ascension and declination.

References ra_dec_to_u().

Referenced by near_matrix::near_matrix().

get_id()

int star::get_id

(

)

const

Get the star's (Hipparcos) id.

Get Hipparcos ID of star.

get_ascension()

double star::get_ascension

(

)

const

Star right ascnension (rad)

Get right ascension (rad)

get_declination()

double star::get_declination

(

)

const

Star declination (rad)

Get declination (rad)

get_magnitude()

double star::get_magnitude

(

)

const

Visual magnitude ()

Get magnitude.