Cosmic dust devil

Comet Hale-Bopp

I recently located a pencil drawing of Comet Hale-Bopp in one of old observing
notebooks  and decided to reinterpret my hasty sketch using the Photoshop airbrush.

The drawing was made using Tim Puckett’s 24″ reflector with a 55mm Plossl (~90x)
while the comet was drawing close to the horizon. Despite the comet’s low elevation,
I noted a dust tail about five degrees long and a four degree ion tail. The
pseudo-nucleus was almost as bright as Alpha Aurigae (Capella)!

The coma displayed three prominent hoods. The innermost hood appeared to an
astonishing “geyser” jetting from and curving around the nucleus . I can only hope
that the drawing comes close to capturing this amazing feature (I almost named the
sketch “A Bad Drawing of a Great Comet”).

The original drawing was made on the evening of  March 29th, 1997.

Dave Riddle
Smyrna, Georgia USA

2 thoughts on “Cosmic dust devil”

  1. Dave,

    Very impressive rendering! The pseudo-nucleus, coma, and hoods blend together well. That must have been an interesting observation. I have read reports about and seen sketches of parabolic hoods but have yet to observe the phenomenon myself. Nice job.

    Michael Rosolina
    Friars Hill, WV USA

  2. Great sketch Dave! I was working up in northeastern Kentucky when Hale-Bopp paid us a visit. Unfortunately I did not have a telescope with me at the time. Thanks for sharing this observation!

    Jason Aldridge
    North Port, FL

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