Nebula
W 43
H II region
A cloud of ionised hydrogen (H II region): a stellar nursery glowing in the ultraviolet light of the young, hot O and B stars inside it. The distance is measured from the parallax of masers in the region.
| Type | Nebula |
|---|---|
| Constellation | Aquila |
| Distance | 3,070 pc (10.0 thousand ly) |
| Diameter | 33.6 ly |
| WISE name | G030.758-00.047 |
| Catalogue status | Known H II region |
| Source | WISE H II Catalog v3.0 |
| Right ascension (J2000) | 18h 47m 38.2s |
| Declination (J2000) | −1° 57′ 18″ |
In the sky
Visible from the whole Southern Hemisphere and north to latitude 88° N. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out 10 thousand years ago. At that time the first farming villages were being founded; there was no writing yet. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 178 million years.