Search found 19 matches

by Bruno Billiaert
2015-10-24 18:17:06
Forum: Variabla stjärnor
Topic: Skrifter utgitt av Det Norske Videnskaps-Akademi
Replies: 0
Views: 1940

Skrifter utgitt av Det Norske Videnskaps-Akademi

Jeg leter etter noen digitale versjoner av disse publikasjoner: Einbu (Enebo), S., 1927. Observations of variable stars made at Dombås (Norway) – X. Skrifter utgitt av Det Norske Videnskaps-Akademi. Mat.-Naturv. Klasse 1927, No. 13, 1-59 (B # 10) [In German]. Einbu (Enebo), S., 1933. Observations of...
by Bruno Billiaert
2015-10-14 09:52:10
Forum: Variabla stjärnor
Topic: Sigurd Einbu
Replies: 3
Views: 2895

Re: Sigurd Einbu

added smaller attachments in .png
by Bruno Billiaert
2015-10-14 09:48:45
Forum: Variabla stjärnor
Topic: Sigurd Einbu
Replies: 3
Views: 2895

Sigurd Einbu

Always nice to pick up some astronomy while on holiday! For those who don't know who Einbu was: He was a Norwegian variable star observer, well known in his time. I have digitized some of his observations in the AAVSO variable star database. Sadly, the museum was closed (due to end of season?) but i...
by Bruno Billiaert
2015-04-15 18:52:11
Forum: Variabla stjärnor
Topic: SS Cygni i utbrott
Replies: 313
Views: 415525

Re: SS Cygni i utbrott

Jeg har sett den i går! For meg er det signalet at vinteren er virkelig slutt!
by Bruno Billiaert
2015-04-11 15:43:20
Forum: Allmänt
Topic: Visiting Sweden
Replies: 4
Views: 4619

Re: Visiting Sweden

@Jonas: takk!
@Gustav: Det ville være hyggelig, men dessverre tar vi båt fra Kiel til Göteborg og videre kjører vi "opp" (nord).
(edit: boten er feilstavet, "båten" selvfølgelig...)
by Bruno Billiaert
2015-04-11 15:01:01
Forum: Allmänt
Topic: Visiting Sweden
Replies: 4
Views: 4619

Visiting Sweden

Hei,

Jeg besøker Sverige (og Norge) i august. Vi går til Stugby, Lofsdalen, Brekkeseter (Rondane, Norge) og til skjærgården i vest.
Bør jeg ta med min astro-materiale (kikkert, ...) eller blir det aldri virkelig mørkt i august?

hilsen,
Bruno
by Bruno Billiaert
2015-03-07 13:17:21
Forum: Variabla stjärnor
Topic: Overview of observations
Replies: 1
Views: 1969

Overview of observations

Hei,

You can see an overview of your observations in VSX (http://www.aavso.org/vsx).
This is how it works:
1) create an account
2) Search > Special searches > Stars I have observed...

Perfect for the number-fetishists among us :-)
by Bruno Billiaert
2015-02-28 17:26:59
Forum: Variabla stjärnor
Topic: HL Tau
Replies: 0
Views: 1588

HL Tau

Hei, There is a nice article about the ALMA observations of HL Tau in the latest number of the Norwegian magazine "Astronomi". HL Tau is also a variable star but there are not very many observations in the AAVSO database, and only a few are visual. I would like to try it, but it's just on ...
by Bruno Billiaert
2014-08-02 09:02:10
Forum: Variabla stjärnor
Topic: Ny RCB-stjärna (?) i Leo Minor
Replies: 37
Views: 18334

Re: Ny RCB-stjärna (?) i Leo Minor

It could be an eclipse variable with a very large period!! Jansen, R found a similar fading in 1942 and brightening in 1945, in pictures taken at Harvard that are digitized now ("Digital Access to a Sky Century @ Harvard" (DASCH)). More info and a phase plot in VSX: http://www.aavso.org/vs...
by Bruno Billiaert
2014-02-23 20:26:59
Forum: Variabla stjärnor
Topic: Ny RCB-stjärna (?) i Leo Minor
Replies: 37
Views: 18334

Re: Ny RCB-stjärna i Leo Minor

Den går opp raskt nå. En svært fascinerende objekt!
by Bruno Billiaert
2013-12-27 20:02:34
Forum: Variabla stjärnor
Topic: Ny RCB-stjärna (?) i Leo Minor
Replies: 37
Views: 18334

Re: Ny RCB-stjärna i Leo Minor

It is still going up slowly! Yesterday: 14.1. That's more than one magnitude brighter than a year ago.
by Bruno Billiaert
2013-12-18 19:13:08
Forum: Variabla stjärnor
Topic: Ny RCB-stjärna (?) i Leo Minor
Replies: 37
Views: 18334

Re: Ny RCB-stjärna i Leo Minor

Den nyeste visuelle observasjon er fra meg :-). Det var fint å se den igjen. Han var faktisk litt lysere enn forrige sesong! Jeg tror det er fortsatt tvil om hvilken type den er?
by Bruno Billiaert
2013-04-21 19:21:23
Forum: Variabla stjärnor
Topic: 25 bortglömda miror
Replies: 66
Views: 44448

Re: 25 bortglömda miror

AN Dra is nearing its maximum: (400-days-lightcurve) http://www.aavso.org/lcg/plot?auid=000-BDQ-343&starname=AN%20DRA&lastdays=400&start=&stop=2456404.2203877317&obscode=BBI&obscode_symbol=2&obstotals=yes&calendar=calendar&forcetics=&grid=on&visual=on&...
by Bruno Billiaert
2013-03-13 10:48:13
Forum: Variabla stjärnor
Topic: Sotstjärnorna
Replies: 151
Views: 96508

Re: Sotstjärnorna

NSV 11154 har jeg sett tre ganger, i august og september (mag.11.9 - 12.0). 000-BKW-029 var dessverre ikke synlig i går. Den er litt for svakt for min 30cm dobson (fra lys forurenset Belgia).
by Bruno Billiaert
2013-03-10 19:59:18
Forum: Variabla stjärnor
Topic: Sotstjärnorna
Replies: 151
Views: 96508

Re: Sotstjärnorna

Jeg greide å se R CrB på 4/03/2013 og vurderte det på magnitud 10.9. TT CrB var litt lysere, mag. 10.8. Z UMi går langsomt opp og jeg estimerte det på mag. 13.1. Kanskje, hvis været samarbeider litt, jeg kan søke "000-BKW-029", en RCB: stjerne som er i nærheten av RZ LMi (UGER). To stjerne...