Bernhard's comets and asteroids    IAU codes: B82 Maidbronn (retired) and K87 Dettelbach Vineyard Observatory

© Copyright: Photo montage performed by Bernhard Häusler, Germany

© Copyright: Photo montage performed by Bernhard Häusler, Germany
Credit of the comet image of 67P/Churyumov-Gerasimenko:


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A warm welcome to all friends of comets and minor planets!

We are living on a beautyful planet, surrounded in space from its large and small brothers and sisters since unimaginable times.
This web is an independant and ad-free approach to the grand show in our neighborhood in space with small amateur equipment.

The importance of the amateurs' collaboration in the follow-up observations of NEOs is immense
and I am delighted to be part of this global team.

For me as an amateur, participating in the measurement of near-earth bodies is definitely inspiring for my demanding hobby.

NEO statistics of K87 Dettelbach Vineyard Observatory )(PDF)  (updated: May,24 2020)
NEO statistics of B82 Maidbronn  (PDF)

Program from July, 11 2020:  On this day we have a menu of some comets and a couple of NEOs. The night was very clear with best conditions to observe.

The auto-guided Telescope (LX600) and the camera (St10-XME) are fully automatic controlled by the programs Orchestrate and TheSky X of Software Bisque over the night session.
The focuser works temperature contolled. So I have nothing else to do as to wait for the results on the next morning...

Both the following template and the script for Orchestrate are generated by self-written Free Basic programs.
The preparation time for a night session usually takes 15-30 minutes. The difference between the calculated observation time of the objects and the real observation time was 1 minute all night.

Not self-explanatory abbreviations:  sq = sequence; Sec = decimal seconds; num = number of exposures; V (on the right)  = real Vmag (important for comets); nsg = number of exposures per stacked group; cf = number of stacked groups for measurement; time = local time  

All parameters of the template are calculated for my equipment on location K87 and based on expected SQM results from Mag/SqArcsec 20 and weaker with the observation slot.
The selection of comets and partially the V magnitudes of comets are  based on the last measurements of the observers of CometasObs.   

Observation programs from 2020-06-18  2020-0622  2020-06-23  2020-06-25 
Script for Orchestrate from 2020-06-27

Actual events:

Moon, Mars, Venus, Jupiter and Saturn came together this morning with the beautiful comet C/2020 F3 NEOWISE.

A moment to pause and think about the beauty and size of our universe. This morning made my face smile.

C/2020 F3 NEOWISE  in Auriga, Lynx on the left. Menkalinan in Auriga is the brightest star top right.

© 2020-07-12 by Bernhard Haeusler, Dettelbach, Germany

© 2020-07-12 by Bernhard Haeusler, Dettelbach, Germany                                                                                                                                                                     larger image click here

4sec. exposure, 2020-07-12 UT01:38, local time 03:38, 70mm f/3.2, Canon EOS 5D Mark II and EF70-200mm f/2.8L ISII USM mounted on a tripod, ISO1000, SQM 19.6 mag
Outside temperature: 7° C, elevation: 297m, Processing: Adobe Lightroom. No stiffeners and best distant view.

I left my telescope with its automatic observations and drove a few kilometers to the highest elevation nearby.
There one of the best moments in my amateur life awaited me with the observation of an absolute top comet.


The Apollo asteroid 2020 KN4 was first observed at T05 ATLAS-HKO Haleakala on 2020-05-24.
Live track of T05

NEO Apollo 2020 KJ4 was passing the Earth on May, 25 2020 in 0.086249 AU distance ~ 12,902,666 km ~ 80,173,455 miles    
The object has a diameter of about 162 meters.

Here you can see a gif animation of this small object:

2020 KN4 by Bernhard Häusler, Dettelbach, Germany

© 2020-05-30 by Bernhard Haeusler, Dettelbach, Germany                                                            North up                                                

37 13sec. exposures, 2020-05-30 UT00:30, 0.30-m f/6.15 SCT +  CCD
17.4 mag, H=21.6, e= 0.29169

Comet C/2019 Y4 (ATLAS) is probably starting a desintegration process.

C/2019 Y4 (ATLAS) by Bernhard Häusler, K87

There are two dots westward the central condensation. The comet tail is looking more and more like a cigar.

Here you find a light curve of the comet on CometasObs showing a decrease of the central magnitude since March, 28 2020 


In comparison an image of comet C/1999 S4 (LINEAR) during its desintegration process...                                            and one week before

2020 FR3 is an Apollo type asteroid and classified as a PHA.

The small body passed a weak galaxy cluster in the Western edge region of constellation LEO close to the bounder of CANCER

Confirmation of a new comet published on the PCCP on July,22 2018, video of July, 25 2018

The object was published first as object A107IQ9 on the PCCP (Possible Comet Confirmation Page), first detected by T08 ATLAS-MLO, Mauna Loa, Hawaii on July,22 2018


The comet is moving from left to right between the arrows. One loop with arrows, 3 loops without arrows, endless. One loop = 1.25 seconds.

A107IQ9 (PCCP) © by Bernhard Haeusler, Germany

C/2018 O1   2018-07-25 B/W   © 2018-07-25 by Bernhard Haeusler, Dettelbach, Germany                       FOV: 21' * 12'                                             

composed 120 30sec. exposures, 2018-07-25, 00:30 - 01:38UT, 0.30-m f/1728mm SCT +  CCD
19.0 mag, sky motion: 6.34"/min in PA253

Moon: Phase 93% in 58° PA222, low Altitude < 6°

The images were recorded automatically together with five other objects using a script written with ORCHESTRATE in the night session

NEO and Amor 2018 NB on July,19 2018

Amor NEO 2018 NB © by Bernhard Haeusler, Germany    

2018 NB © by Bernhard Haeusler, 2018-07-19    

10 x 20sec. exposure, 2018-07-19 UT 01:18, 12" SCT  f-5.66 + CCD ST10XME,              
15.0 mag, H 19.5, ~426m

Atira NEO 2017 TF2 © by Bernhard Häusler, K87 Dettelbach

2018 NB © by Bernhard Haeusler, 2018-07-19    

Animation of 100 20sec. exposures, 01:12UT - 01:54UT, 42 minutes in reality ~ 1.5 sec. in animation

NEO and Atira 2017 TF2 on October,11 2017

Atira NEO 2017 TF2 © by Bernhard Haeusler, Germany     Atira NEO 2017 TF2 © by Bernhard Häusler, K87 Dettelbach

2017 TF2 © by Bernhard Haeusler, 2017-10-11    

On the left:

57 x 60sec. exposure, 2017-10-11 UT 18:41, 12" SCT  f-6.15 + CCD ST10XME,              
19.6 mag

On the right:

Animation of 57 60sec. exposures, 18:41UT - 19:13UT, 32 minutes in reality ~ 1 sec. in animation
The NEO is moving from top to bottom inside the red lines.

last observed comets:

C/2016 R2 (PANSTARRS) © by Bernhard Haeusler, Germany    C/2016 R2 (PANSTARRS) © by Bernhard Haeusler, Germany

C/2016 R2 (PANSTARRS)  by Bernhard Haeusler, 2018-02-16 B/W   

composed 31 2min. exposures, 2018-02-16 UT18:42, 0.30-m f/1646.2mm ACF-SCT +  CCD
14.73mag, coma: 6', tail: 16' in PA91

C/2016 A1 (PANSTARRS) © by Bernhard Haeusler, Germany 

C/2016 A1 (PANSTARRS)  by Bernhard Haeusler, 2018-02-06 B/W

composed 33 120sec. exposures, 2018-02-06 UT22:32, 0.30-m f/2240.2mm SCT +  CCD
16.23mag, coma: 13", tail: 3' in PA161  

C/2016 A1 (PANSTARRS) © by Bernhard Haeusler, Germany

C/2016 A1 (PANSTARRS)  by Bernhard Haeusler, 2018-02-06 B/W

animated 64 2min.exp, 2018-02-06  UT21:23 - 23:41; asteroid on the left side: 34286, 18.1 mag

C/2016 N4 (MASTER) © by Bernhard Haeusler, Germany

C/2016 N4 (MASTER)  by Bernhard Haeusler, 2017-09-22 B/W   

composed 35 60sec. exposures, 2017-09-22 UT21:37, 0.30-m f/1873.1mm SCT +  CCD
16.29 mag, coma: 30", tail: 4'30' in PA150  

C/2015 V2 (Johnson) © by Bernhard Haeusler, Germany    

C/2015 V2 (Johnson)  by Bernhard Haeusler, 2017-05-20 B/W                                               

composed 10 30sec. exposures, 2017-05-20 UT22:12, 0.30-m f/1873.1mm SCT +  CCD, IP: DDP low pass
12.05 mag, tail: 16' in PA317  

41P/Tuttle-Giacobini-Kresak © by Bernhard Haeusler, Germany       41P/Tuttle-Giacobini-Kresak © by Bernhard Haeusler, Germany

41/Tuttle-Giacobini-Kresak © by Bernhard Haeusler, 2017-05-01 B/W

composed 90 20sec. exposures, 2017-05-01 UT01:54, 0.30-m f/1875mm SCT +  CCD, IP: DDP Kernel low pass
13.6 mag, coma: 5', tail: 1' in PA236

Right:  Video of 70 frames of 20 seconds exp.time each, 2017-05-01 UT01:54
Original size MP4 or MP4 HTML (22,353 KB) 

45P/Honda-Mrkos-Pajdusakova © by Bernhard Haeusler, Germany        45P/Honda-Mrkos-Pajdusakova © by Bernhard Haeusler, Germany

45P/Honda-Mrkos-Pajdusakova © by Bernhard Haeusler, 2017-03-26 B/W       

composed 36 2min. exposures, 2017-03-26 UT20:10, 0.30-m f/1875mm SCT +  CCD,
17.3 mag (10" Box), coma: 1'15", tails: 8'30" in PA284, 1'15" in PA106

Right: Video of 35 frames of 2 minutes exp.time each, 2017-03-26 UT20:10 - UT21:24
Original size MP4 or MP4 HTML (2,356 KB)

Flash of the Satellite IRIDIUM 86, Mirror 2 on February,13 2018 with -2.5 mag

IRIDIUM 8662 © by Bernhard Haeusler, Germany 

IRIDIUM 86 © 2018-02-13 by Bernhard Haeusler, Dettelbach, Germany                            

detail of 1 15 sec. exposure, 2018-02-13 UT 17:56:32, camera: ZWO ASI 178 MC Color,  allsky lens: 2.5mm, f-1.2  170°
No Moon.


© Copyright of all sites and images of this web: Bernhard Haeusler, Dettelbach, Germany   IAU code: B82 Maidbronn and K87 Dettelbach Vineyard Observatory