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    Re: A strange set of Venus LoPs.
    From: Antoine Couëtte
    Date: 2020 Apr 6, 10:14 -0700

    05 Apr 2020 at 16:00:00 UT1, TT-UT = close from +69 s (OK ... do not cane me ... it is not quite necessary mentioning it here given the slow Venus RA and Dec hourly variations).

    From Antoine to Tony ...

    At 16:00:00 UT1 Venus GHA = 015°38.4' , Dec = N 24°20.2' .

    These values do not match by quite far the ones you have indicated for 16:00:00  ( 015°24.1' , N 24°34.6').

    Let us continue with your data :

    From N60°06.6 E 029°56.8' with Height of Eye = 3 m , standard Temperature and Pressure

    Venus 16h04m30.0s UT1, H = 42°00.4' (i.e. value corrected for instrument error), get intercept = -1.1 NM (away) / Azimut 243.1°

    Venus 16h21m55,0s UT1, H = 40°01.9' (i.e. value corrected for instrument error), get intercept = -1.5 NM (away) / Aimut 247.7 °

    Both intercepts look reasonable and quite good actually.

    Hence my suggestion would be first carefully re-checking your Venus data for GHA and Dec.

    Best Regards


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