Category Archives: Uncategorized

AAVSO on Twitter

I am a happy member of the AAVSO. The organization organizes amateurs and professionals on a global scale who are interested in variable stars; furthermore, the AAVSO has built up and maintained crucial parts of the infrastructure of variable star … Continue reading

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Is R CrB brightening?

R CrB has been on a plateau during some time, hovering 1.5-2 magnitudes below the normal maximum magnitude. But recently an upward trend has been visible; last night I observed it at 7.2. The current minimum must be one of … Continue reading

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Searching for a meteorite

The Swedish Allsky Meteor Network tracked a bolide on November 28, 2016 that could possibly have produced a fall. Calculations by Eric Stempels, coordinator of the network, gave coordinates on the ground, should the bright meteor have produced meteorites. On … Continue reading

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Meeting with SAAF

Last weekend SAAF, the Swedish Association of Amateur Astronomers, met in Beddingestrand, for a couple of days of talks, observing &c. Great meeting old and new friends!

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Neglected miras

50 neglected miras is the theme for a programme run by SAAF/V, the variable star section of SAAF since February 2012. We have, at the time of writing, amassed 8826 observations, observations have been analysed and new knowledge has emerged … Continue reading

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No sunspots

I just observed the Sun: no sunspots, just like the other day. The current sunspot cycle has been quite low. Since a number of years, I am reporting my sunspot observations to the international data centre in Brussels; monitoring such … Continue reading

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R Dra past max

The current R Dra maximum was, as noted earlier, comparatively bright. My brightest observation was at 6.2 on December 13. Here are the latest six maxima as reported by Swedish observers:

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Bright max of R Dra

R Draconis is heading for a comparatively bright maximum. I observed it at 6.4 this evening. Yet another example of the personality of miras that makes them, even the brighter ones, such interesting phenomena to follow.

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This year’s spring meeting

We had a great meeting in Gothenburg with the variable star group SAAF/V, our third spring meeting in four years, so it is becoming something of a tradition. Here are some pictures:

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Low sunspot stats

Paradoxically as it may sound, I find observing the sun these days very exciting. Few sunspots show up – today’s lunch-break observation with the 90mm Maksutov showed 3 groups and 6 spots – and the maximum last year of solar … Continue reading

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