Roter Rechtecknebel
| Protoplanetarischer Nebel Roter Rechtecknebel | |
|---|---|
 | |
| Aufnahme des Hubble-Weltraumteleskops | |
| AladinLite | |
| Sternbild | Einhorn |
| Position Äquinoktium: J2000.0 | |
| Rektaszension | 6h 19m 58s [1] |
| Deklination | -10° 38′ 15″[1] |
| Erscheinungsbild | |
| Scheinbare Helligkeit (visuell) | 9,02 mag [1] |
| Scheinbare Helligkeit (B-Band) | 9,33 mag [1] |
| Zentralstern | |
| Bezeichnung | HD 44179, HIP 30089[1] |
| Physikalische Daten | |
| Entfernung | 2300 Lj [2] |
| Alter | 14.000 Jahre [2] |
| Geschichte | |
| Katalogbezeichnungen | |
| HD 44179 | |
Der Rote Rechtecknebel (engl. Red Rectangle Nebula) ist ein protoplanetarischer Nebel (Vorstufe eines planetarischen Nebels) im Sternbild Einhorn und ist etwa 2.300 Lichtjahre von der Erde entfernt. Der Name „Rotes Rechteck“ geht auf die Astronomen Martin Cohen und Mike Merril im Jahr 1973 zurück.
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Autor/Urheber: Judy Schmidt, Lizenz: CC BY 2.0
Perplexing, enigmatic and astonishing--no single word captures the essence of the Red Rectangle. This <a href="http://www.spacetelescope.org/images/heic0408b/" rel="nofollow">series of images</a> from a simulation of the Red Rectangle helped me to better understand its structure.
I tried to show the torus of dust obscuring the central binary star system. The center is very bright and it's easy to lose that detail, which looks like a darker vertical line crossing the center in this image. In order to do this I applied the luminosity of the very central region of the F658N data to the other two channels since it shows up most clearly there. I also very carefully removed diffraction spikes by selectively reducing their curves rather than other methods such as cloning which I feel more greatly compromises the object's integrity.
Red: HST_10851_01_ACS_HRC_F658N_sci Green: HST_10851_01_ACS_HRC_F625W_sci Blue: hst_07297_01_wfpc2_f467m_pc_sci
North is NOT up.