A VLT spectrum of EROS-BLG-2000-5
This chart shows a spectrum of EROS-BLG-2000-5, obtained with the FORS1 multi-mode instrument at the 8.2-m VLT ANTU telescope at Paranal on June 25, 2000, before the second caustic crossing described in the text. A small part of the spectrum around the H-alpha line at wavelength 656.2 nm is enlarged in the insert.
Technical information: The FORS1 spectrum shown here is a composite of 300-sec exposures taken with with the 600B (spectral interval 390 - 580 nm), 600R (538 - 753 nm) and 600I (705 - 918 nm) gratings; the insert covers a 10 nm wide region near H-alpha.
Kredit:ESO
O snímku
Id: | eso0117c |
Typ: | Pozorování |
Datum zveřejnění: | 25. dubna 2001 |
Související články: | eso0117 |
Velikost: | 3000 x 2079 px |
O objektu
Jméno: | EROS-BLG-2000-5 |
Typ: | Milky Way : Star Milky Way : Cosmology : Phenomenon : Lensing |
Vzdálenost: | 25000 světelné roky |
Kategorie: | Stars |
Barvy & filtry
Pásmo | Dalekohled |
---|---|
Infračervený | Very Large Telescope FORS1 |
Optický | Very Large Telescope FORS1 |