Purple Haze

This week’s picture of the week features DG121, an HII region — a cloud of ionised hydrogen — located in the constellation of Puppis (the Stern).

HII regions, a type of emission nebulae, are created when young, massive stars release enough ultraviolet energy to ionise the surrounding gas clouds. These regions tend to have irregular structures and lack sharp boundaries, giving them their hazy, yet photogenic, appearance. The brightest star in the DG121 region, seen near the centre in this picture, is HD 60068. 

This spectacular image was taken with the FORS 2 (FOcal Reducer and low dispersion Spectrograph 2) instrument on ESO’s Very Large Telescope in the Chilean Atacama Desert. This instrument has been described by astronomers as "the Swiss army knife of instruments at Paranal", because of its ability to study many different astronomical objects in many different ways.

Припис:

ESO

Про зображення

ID:potw2119a
Тип:Спостереження
Дата релізу [date]:10 травня 2021 р. 06:00
Розмір:1718 x 1727 px

Про об’єкт

Назва:DG121
Тип:Milky Way : Nebula : Appearance : Emission : H II Region
Constellation:Puppis
Категорія:Nebulae

Формати зображень

Великий JPEG
519,4 Кб

Масштаб


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Координати

Position (RA):7 32 9.97
Position (Dec):-16° 58' 18.07"
Field of view:7.21 x 7.25 arcminutes
Орієнтація:Північ на -0.0° ліва від вертикалі

Кольори та фільтри

ДіапазонДовжина хвиліТелескоп
Оптичний
B
440 nmVery Large Telescope
FORS2
Оптичний
V
557 nmVery Large Telescope
FORS2
Оптичний
R
655 nmVery Large Telescope
FORS2
Оптичний
H-alpha
656 nmVery Large Telescope
FORS2