Celestial hemisphere:  Southern  ·  Constellation: Vela (Vel)
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Faint, rarely imaged but important hh46-47: first jet found near protostar, Freestar8n
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Faint, rarely imaged but important hh46-47: first jet found near protostar

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Faint, rarely imaged but important hh46-47: first jet found near protostar, Freestar8n
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Faint, rarely imaged but important hh46-47: first jet found near protostar

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Description

This is a very faint object with few amateur images on the web. The large dark region is a Bok globule and the faint white emission is a bipolar jet from a protostar formed in the globule.

The features of the jet and associated faint extended structures can be matched with this image:

https://www.eso.org/~tstanke/thesis/fig1.html

Imaged with EdgeHD11 at f/7 with ASI1600 and 3nm Ha filter. 128x5m exposures. No processing other than levels and cropping - then reduction by 50% to 0.8" per pixl. Video guided with MetaGuide - fwhm's in the stack about 1.7".

An early paper on the region is here:

http://adsbit.harvard.edu//full/1991A%26A...246..511R/0000511.000.html

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Revisions

  • Faint, rarely imaged but important hh46-47: first jet found near protostar, Freestar8n
    Original
  • Faint, rarely imaged but important hh46-47: first jet found near protostar, Freestar8n
    B
  • Final
    Faint, rarely imaged but important hh46-47: first jet found near protostar, Freestar8n
    C

B

Description: New revision with added time - now 58x5m exposures = 4.8 hours. More faint parts of the jet are visible.

Uploaded: ...

C

Description: New version with 128x5m = 10.7 hours exposure. fwhm in stack around 1.7".

Uploaded: ...

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Faint, rarely imaged but important hh46-47: first jet found near protostar, Freestar8n