OED1

Constellation: Vela

OED1 is a rapidly expanding bubble (potential planetary nebula?) East of the Vela SNR region C [1,2] in the constellation of Vela. This is a project in progress as I am collected more data to get a deeper view into this object.  Link to interactive sky chart.

1. Aschenbach, B., Egger, R., & Trümper, J. 1995, Nature, 373, 587
2. https://www.aanda.org/articles/aa/full_html/2011/01/aa15346-10/F1.html

Reverse images of Ha, [S II] and [O III] emission lines. Note that the bubble to the East has no signal in [S II], and hence it may well be a planetary nebula. The bright central object is the region C of the Vela SNR, one of the extended features outside the boundary of the remnant (“bullets”), and displays a strong [S II] signal.

Dates:

This image was taken between March and June 2026

Color palettes: HSO with RGB stars in a 2-panel mosaic (work in progress)

Telescope & Mount:

Planewave CDK14 on a Paramount MX mount.

Imaging:

Camera: Player One Zeus-Mono (bin 2×2)

Data:
Ha: 110+58x900s
O3: 107+80X900s
S2: 96+54x900s

Stars:
Red: 90+42x60s
Green: 60+59x60s
Blue: 58+35x60s

Total integration time: 131h 59′