← Another date

Birthday · September 4, 2024

NGC 6995: The Bat Nebula

September 4, 2024

The cosmos is full of spectacular things: ringed planets, exploding suns, rivers of stars across the night.

NGC 6995: The Bat Nebula

A little universe, just for you

Your date.
Ready to give.

Free PNG · 1080 × 1350 · No account needed

Image rights and credit requirements apply when sharing or reusing imagery.

Change the year

APOD published September 4, 2024. Credit: Mike Taivalmaa. A publication-date match, not a photo taken on your date. Independent of NASA.

Behind the image

NGC 6995: The Bat Nebula

Original APOD · September 4, 2024

Can you see the bat? It haunts this cosmic close-up of the eastern Veil Nebula. The Veil Nebula itself is a large supernova remnant, the expanding debris cloud from the death explosion of a massive star. While the Veil is roughly circular in shape and covers nearly 3 degrees on the sky toward the constellation of the Swan (Cygnus), NGC 6995, known informally as the Bat Nebula, spans only 1/2 degree, about the apparent size of the Moon. That translates to 12 light-years at the Veil's estimated distance, a reassuring 1,400 light-years from planet Earth. In the composite of image data recorded through narrow band filters, emission from hydrogen atoms in the remnant is shown in red with strong emission from oxygen atoms shown in hues of blue. Of course, in the western part of the Veil lies another seasonal apparition: the Witch's Broom Nebula. Teachers & Students: Ideas for using APOD in the classroom

Image credit: Mike Taivalmaa

Explore September 4 in other years