› Forums › Variable Stars › UZ Boo
- This topic has 56 replies, 6 voices, and was last updated 2 months, 1 week ago by Mr Ian David Sharp.
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19 August 2024 at 10:07 pm #624350Dr Paul LeylandParticipant
Good to see this coverage of UZ Boo and especially to see the appearance of SH’s. Hopefully these will grow.
The sky here last evening was dreadful: I could only see Vega, Altair and a very coppery Moon.Nothing from me tonight because of the strong calima. Vega and Arcturus are obvious, Deneb and Altair with some difficulty. The moon is rising. Na light pollution from El Paso / Los LLanos about 2-5km away is visible, as is that from Santa Cruz on the other side of the island with a 1500m high ridge between us. Remember that La Palma has strict regulations against emitting light upwards and they are obeyed by and large, especially municipal street lighting.
One of the worst nights I’ve seen in a long time, and I haven’t even mentioned the thin patchy cloud.
20 August 2024 at 11:12 am #624364Magnus LarssonParticipantHi!
Another series from my backyard in Malmö, Sweden. No clear humps here…
Magnus
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21 August 2024 at 3:27 am #624384Mr Ian David SharpParticipantHi all,
A real drop in brightness, much fainter tonight. Here are 50 more measurements from here in the UK.
Cheers
Ian.Attachments:
23 August 2024 at 2:28 pm #624448Gary PoynerParticipantUZ Boo had faded to 16.66C by last night, so now we’ll be looking for rebrightenings over the next few days.
Gary
24 August 2024 at 1:04 pm #624461Magnus LarssonParticipantHi!
I captured something of a series yesterday night from my backyard. 5 min exposures now and considerable error bars so the movements are possibly noise.
Magnus
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25 August 2024 at 9:20 am #624494Mr Ian David SharpParticipantHi all,
I managed 26 x 180s images last night – see attached. I concur with Gary and Magnus that it is down at about mag. 16.2 in V.
Cheers
Ian.Attachments:
25 August 2024 at 1:57 pm #624520Gary PoynerParticipantMinimum is around mag 20, so it’not over yet!
Gary
25 August 2024 at 3:02 pm #624533Dr Paul LeylandParticipantV= 16.27 +/- 0.02 at JD2460547.3847 ~= 20240824-21:13Z
26 August 2024 at 7:21 am #624570Magnus LarssonParticipantHi!
Unless there is something seriously off with my routine, I captured it at around magnitude 13 yesterday. Here is a series designed for mag 16 (Clear filter, 5 min exposures).
Magnus
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26 August 2024 at 9:31 am #624572Mr Ian David SharpParticipantUnless there is something seriously off with my routine, I captured it at around magnitude 13 yesterday. Here is a series designed for mag 16 (Clear filter, 5 min exposures).
That’s amazing Magnus!
Poor weather here last night, but I reckon there’s a decent chance I’ll be able to get it again tonight.
Cheers
Ian.26 August 2024 at 10:28 am #624578Jeremy ShearsParticipantNice catch on the rebrightening, Magnus!
26 August 2024 at 12:04 pm #624590Gary PoynerParticipantFine work Magnus. I’ll add this to the CVnet page now!
Well done,
Gary27 August 2024 at 8:28 am #624611Mr Ian David SharpParticipantHi all,
Poor, hazy conditions from here last night, but I managed 8 images and they are swinging around an average of 15.07 in V.
Cheers
Ian.Attachments:
27 August 2024 at 4:11 pm #624616Magnus LarssonParticipantHi!
Thanks 🙂
I had it at 14.6-ish last night, C-filter.
Magnus
27 August 2024 at 10:44 pm #624649Mr Ian David SharpParticipantAs of a few minutes ago, it’s back down to 16.1 in V again.
Ian.
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28 August 2024 at 1:26 pm #624662Denis BuczynskiParticipantObservations tonight 20240827-28
Uz Boo#LOCATION=57 50 41.9N 03 47 53.8W H35m
#NAME DATE MAG MAGERR FILT TRANS MTYPE CNAME CMAG KNAME KMAG AIRMASS GROUP CHART NOTES
uz boo 2460550.423 16.133 0.055 v NO STD 144 13.882 121 11.561 na na X37580AA na
uz boo 2460550.424 16.127 0.053 v NO STD 144 13.893 121 11.576 na na X37580AA na
uz boo 2460550.425 15.986 0.053 v NO STD 144 13.924 121 11.584 na na X37580AA na
uz boo 2460550.426 16.248 0.066 v NO STD 144 13.907 121 11.576 na na X37580AA na
uz boo 2460550.427 16.013 0.054 v NO STD 144 13.943 121 11.606 na na X37580AA na
uz boo 2460550.428 16.046 0.056 v NO STD 144 13.922 121 11.604 na na X37580AA naObservations uploaded to VSS Database
Denis28 August 2024 at 9:12 pm #624675Magnus LarssonParticipantHi all,
Another re-brightening in progress – I have it at 13.65 with Clear filter just now.
Magnus
29 August 2024 at 7:34 am #624684Mr Ian David SharpParticipantAnother re-brightening in progress – I have it at 13.65 with Clear filter just now.
Yes, I agree, I’m getting an average of 13.66 in V over 11 measurements.
Cheers
Ian.- This reply was modified 2 months, 3 weeks ago by Mr Ian David Sharp.
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30 August 2024 at 8:24 am #624689Mr Ian David SharpParticipantHi all,
14.65 V last night.
Cheers
Ian.Attachments:
31 August 2024 at 4:02 am #624707Denis BuczynskiParticipantobservations tonight at Tarbatness of UZ BOO show the star has faded to 16.11 measured in Astrometrica 6x60s v band 20240830.87872
Denis Buczynski -
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