GALExtin - Galactic Interstellar Extinction

Extinction models: System of coordinates Galactic longitude (in degrees): Galactic latitude (in degrees): Distance (kpc): File list: Compute extinction:

Important: i-) before using GALExtin, it is useful to read the FAQ's page; ii-) the input distances should always be in kiloparsec.

News (January, 2023): We have updated GALExtin with six maps (Schultheis et al. 2014; Gontcharov 2017; Surot et al. 2020; Gontcharov & Mosenkov 2021; Guo et al. 2021; Zhang & Kainulainen 2022). GALExtin now has 26 extinction/reddening maps/models.

If you find any problem or have suggestions, please let us know (galextin_at_gmail.com).