Observation by Tim Haymes: Small magnitude drop during an occultati...

Uploaded by

Tim Haymes

Observer

Tim Haymes

Observed

2019 Apr 01 - 23:28

Uploaded

2019 Apr 28 - 15:15

Objects

554 Peraga
Lightcurve

Equipment

203mm F/4 SN8
EQ6pro / EQMOD
WAT-910HX video
SPRITE2-u GPSVTI

Exposure

160ms

Location

Knowl Hill, Berks, UK

Target name

(554) Peraga and *UCAC4 395-054740

Title

Small magnitude drop during an occultation

About this image

This is the light curve measured with the Occult4 tool: AOTA. Its a bit weak because the predicted drop in magnitude from star+asteroid (v12.4), to asteroid was small and noisy at 0.2 mag. This is close to the 8bit video limit for an 8" scope. The duration at my position was 7 to 8 seconds, and was confirmed by some nearby astro-pals with larger apertures. So i'm confident this was real, albeit with large uncertainty in exact duration. The chord results can be seen on Eurster.net courtesy of Eric Frappa

http://www.euraster.net/results/2019/20190402-Peraga_crd.gif

Files associated with this observation

haymes 2019-Apr-02 00-26-35 (554)_Bin1_Form-2.png (119.0 kB)

Like this image

Jeremy Shears, Mr Simon Francis Dawes, Andy Wilson, john simpson, Ray Emery, David Basey, Peter Mulligan, Graham Winstanley, Mr Michael Alan Frost, Andrew Dumbleton, Peter Carson, David Hancox, Andres Chapman, stan armstrong

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