Astronomy Tools

Calculate distances and absolute magnitudes from redshift data

Redshift (z) *

Redshift error (optional)

Apparent magnitude (m)

Extinction (A)

Distance Unit

Enter redshift value and click Calculate to see results

Convert between different coordinate formats

Right Ascension (RA)

RA (hh:mm:ss)

RA (Decimal °)

Declination (DEC)

DEC (±dd:mm:ss)

DEC (Decimal °)

RA result will appear here

DEC result will appear here

Convert between different astronomical date formats

Modified Julian Date (MJD)

Julian Date (JD)

Common Date

Enter any date format to see conversions