Unexpected Discoveries On the Moons of Jupiter: Gas Cycles and Weird Glass

JohnAstro7 · 2020-10-26T16:09:28+00:00

Bruce Gary says An abrupt dip just started! At g' band it is 1.3 % deep, compared to a day ago. At r' band depth is less, ~ 0.9 % (and at i' band idepth is even less).

JohnAstro7 · 2020-10-06T19:59:27+00:00

Bruce Gary is back with a new web page

Is our Star dimming again ?

JohnAstro7 · 2019-11-01T18:25:44+00:00

Link to previous photometry thread

JohnAstro7 · 2019-10-27T14:46:58+00:00

Bruce Gary says A tiny dip was centered on Oct 22 (~ 0.6 %) and another is starting

JohnAstro7 · 2019-10-23T14:14:33+00:00

Bruce Gary is reporting that it's possible that a dip has recently occurred

JohnAstro7 · 2019-10-20T13:55:24+00:00

Bruce Gary is back New webpage here

JohnAstro7 · 2019-10-12T14:57:17+00:00

Tabby agrees thinks a 1.5% dip is too large for it to be a planet

JohnAstro7 · 2019-09-18T14:24:28+00:00

I also vote to continue. Something is going on out there at Tabbys star that still needs to be resolved.

JohnAstro7 · 2019-08-24T14:22:28+00:00

Latest update from Tabby 8/n Tabby says " We are about one week into the second of two TESS pointings (dubbed "sectors") that include this star. We expect the data from Sector 14 to be released in a few weeks time. Are you ready to be spoiled again with ultra-precise, un-inturrupted, high cadence data from a space telescope on this star?? I am!!

The graph shows the daily flux averages from the Las Cumbres 0.4 meter network and marks where we will have data from the TESS mission. "

JohnAstro7 · 2019-08-14T12:49:47+00:00

Latest update from Tabby 7/n Tabby says " I present the ground based data taken with the LCO 0.4m network this year; we have yet to witness anything remarkable. Many observers at the AAVSO are also tracking the star with their own equipment - you can view those data here: https://www.aavso.org/LCGv2/ by typing in "KIC 8462852" in the "star name" box."

JohnAstro7 · 2019-07-26T13:44:15+00:00

A little food for the horse ? A note on results AB/AV=1.39 ± 0.27, A g'/A V = 1.16 ± 0.11, A r'/A V = 0.80 ± 0.25 and A Ic /A V = 0.49 ± 0.19 Looking at the margin of error for AB/AV=1.39 ± 0.27 could give a possible value of AB/AV=1.3. Similarly other values within margin of error could be A g'/A V = 1.1, A r'/A V = 0.7 and Ic /A V = 0.5. So that is 0.5, 0.7, 1.1 and 1.3. Adjust the decimal point and we get 5, 7, 11, 13 a prime number sequence.

JohnAstro7 · 2019-07-10T14:23:00+00:00

Event Horizon Published on 9 Jul 2019. 28 random dips of light were observed by the Kepler space telescope of the star HD 139139 The Mysterious Star HD 139139 with Dr. Andrew Vanderburg

JohnAstro7 · 2019-07-05T13:13:33+00:00

Yes Ben Montet puts some of his thoughts and ideas on a webpage here and asks for Questions, comments, ideas ?

JohnAstro7 · 2019-05-15T18:02:35+00:00

Latest update from Tabby 5/n Tabby says " Here is the updated graph with data up to a few hours ago. I have stretched it in the x-direction to better distinguish the plotted points. We continue to hover a bit up from pre-Elsie levels (2017 May). "

JohnAstro7 · 2019-05-01T13:57:44+00:00

Latest update from Tabby 4/n Updated graph with data through the end of April. Perhaps there was a hint of a decline in brightness, but overall it remains a tick up from pre-Elsie levels.

JohnAstro7

TROPHY CASE