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Thread: Object of the Week, December 31, 2023 – M 78, Reflection Nebula

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  1. #1
    Member Steve Gottlieb's Avatar
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    Some notes with a 13.1" and 17.5":

    NGC 2068 (M78): Very bright RN surrounding two stars (mag 10.4 HD 290862 and mag 10.8 HD 38563) with a third mag 13 star at the south end. Large, irregular shape, 6'x4'. Brightest along the north side which has a sharply defined slightly bowed-out edge (boundary with curved dark nebula LDN 1627) with HD 38563 near the midpoint. A brighter knot is just following this star. The nebula fans out irregularly towards the south and fades with no distinct borders but tapers somewhat at the south edge.

    NGC 2064: Very faint RN but clearly visible. No involved stars. Appears elongated 2:1 SW-NE, at most 2'x1'.

    NGC 2067: Very faint patch, circular. No involved stars.

    NGC 2071: Fairly bright RN surrounding HD 290861, a 10th magnitude YSO with a faint companion close south. The shape appears irregular (although no distinct borders) but extends ~3.5' in diameter and more on the south side of the star. A second 10th mag star, HD 290860, lies 3.5' NW and doesn't seem involved. The field is strangely lacking in stars due to dust obscuration.

    [B77] 106: brightest object south of McNeil 1 (observed together on Feb. 3, 2005). At 160x, appears as a very small, fuzzy halo surrounding a faint star (T Tauri-type SSV 61) or quasi-stellar center. The nebulosity is perhaps 10"-15" in diameter.

    McNeil-1: very faint glow, ~30" diameter. Picked up 1' W of a faint double star [mag ~14.5/15 at 19"]. Almost held continuously with averted vision.

    The last observation I made of McNeil-1 was 4 years later (Feb '09).
    Last edited by Steve Gottlieb; January 5th, 2024 at 03:37 PM.
    Steve
    24" f/3.7 Starstructure
    18" f/4.3 Starmaster
    Adventures in Deep Space
    Contributing Editor, Sky & Tel

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