The VLT images a "rectangular" planetary nebula

IC 4406 is a planetary nebula with an unusual, almost "rectangular" shape. It is located in the southern constellation Lupus (the Wolf). The distance is somewhat uncertain, possibly around 5,000 light-years. Like the Butterfly Nebula (cf. VLT UT1 First Light Photo No. 4), IC 4406 belongs to the class of bipolar nebulae. However, the dark and dusty central band (the "disc-like structure") is less pronounced in this object and the internal structure is more uniform. The different colours correspond to regions of different composition and physical properties.

This is a combination of two 5-min B (blue) exposures (seeing 0.95 arcsec), two 5-min V (green-yellow) exposures (0.90 arcsec), and one 5-min and two 2-min R (red) exposures (0.70 to 0.90 arcsec) with the VLT Test Camera. Individual frames were flat-fielded and cleaned for cosmics before colour combination; there was no further image processing. The field measures 1.5 x 1.5 arcmin. North is to the upper right; East is to the upper left.

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Om bilden

ID:eso9827a
Typ:Observation
Publiceringsdatum:23 juni 1998
Relaterade pressmeddelanden:eso9827
Storlek:2340 x 2557 px

Om objektet

Namn:IC 4406
Typ:Milky Way : Nebula : Type : Planetary
Avstånd:5000 ljusår
Constellation:Lupus
Kategori:Nebulae

Bildformat

Originalstorlek
17,1 MB
Stor jpeg
446,2 kB
Skärmstor jpeg
63,9 kB

Skrivbordsunderlägg

1024x768
75,3 kB
1280x1024
119,5 kB
1600x1200
172,8 kB
1920x1200
206,7 kB
2048x1536
271,7 kB

Koordinater

Position (RA):14 22 26.29
Position (Dec):-44° 9' 5.34"
Field of view:1.43 x 1.51 arcminutes
Orientering:Nord är 44.8° höger om lodrätt

Färger och filter

BandTeleskop
Synligt ljus
B
Very Large Telescope
Synligt ljus
V
Very Large Telescope
Synligt ljus
R
Very Large Telescope

 

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