BHTOM Targets for 23 March, 2026
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wyrz...@gmail.com
Mar 23, 2026, 5:49:15 AMMar 23
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As of 2026-03-23 09:46:26.989997+00:00, these are the new targets added in the last week for observing (importance>=1), sorted by magnitude:
| name | ra | dec | mag_last | sun_separation | classification | description |
|---|---|---|---|---|---|---|
| ASASSN-26bp | 225.854950 | -63.189410 | 13.1 | 110.0 | Star | Star Undergoing Deep Dimming Events |
| Gaia20ehk | 116.854747 | -34.158998 | 13.5 | 111.0 | Star | Optical dipper and low-luminosity infrared stellar transient which is a suspected planetary collision afterglow |
| ASASSN-26bl | 67.752229 | -68.497300 | 14.8 | 82.0 | Nova | AT 2026fbz |
In addition, here are some older targets that are currently visible and requested for observations. These targets have an importance>=4, a sun separation>70, and last magnitude<18, sorted by magnitude.
| name | ra | dec | mag_last | sun_separation | classification | description |
|---|---|---|---|---|---|---|
| TCrB | 239.875676 | 25.920170 | 8.8 | 118.0 | Nova | recurent nova predicted to explode 2024/2025 |
| RXJ0441.0+4431 | 70.247207 | 44.530349 | 10.5 | 74.0 | XRB | Be X-ray binary |
| 1H1936+541 (BD+53 2262) | 293.217949 | 53.879297 | 10.7 | 77.0 | XRB | optical counterpart of the Be X-Ray Binary |
| V1413 Aql | 285.945155 | 16.438048 | 11.9 | 76.0 | Symbiotic star | known symbiotic star for regular monitoring |
| IGRJ06074+2205 | 91.860884 | 22.096600 | 12.1 | 90.0 | XRB | Be X-ray binary |
| V1117 Her | 249.776779 | 9.798698 | 12.8 | 112.0 | Unknown | PMS star, Herbig Ae star |
| 8C0716_714 | 110.472701 | 71.343434 | 13.6 | 95.0 | QSO | checking of ~1.7-days periodic variability and quasi-periodic variability of ~24 days |
| AM_Her | 274.055228 | 49.867989 | 13.7 | 88.0 | CV | Target for joint optical-radio observations |
| Mrk 817 | 219.092017 | 58.794299 | 13.7 | 114.0 | Unknown | Seyfert 1 AGN |
| AT2025sqe | 288.715125 | 8.001778 | 13.9 | 73.0 | Unknown | slow galactic very red transient |
| AT2025acft | 295.939833 | 40.367889 | 13.9 | 71.0 | Microlensing Event | Candidate long microlensing event from Chinese KATS survey, KATS25V002 |
| Mrk 841 | 226.004963 | 10.437732 | 14.4 | 135.0 | AGN | changinglook AGN |
| Gaia24ala | 86.808830 | 0.152040 | 14.8 | 85.0 | YSO | Dimming in candidate YSO |
| NGC5683-Seyfert | 218.718578 | 48.661870 | 14.9 | 121.0 | AGN | active nucleus of a nearby galaxy for frequent monitoring |
| SN 2026dix | 177.655950 | 55.353589 | 15.3 | 124.0 | Unknown | Closeby IIb supernova |
| ZTF18aarippg | 217.566838 | 23.062372 | 16.3 | 138.0 | QSO | Tick-Tok possibly merging Super Massive Black Hole binary |
| Gaia24dfc | 52.509900 | 61.429790 | 16.3 | 71.0 | Unknown | Brightening in candidate YSO |
| SN 2025aico | 172.318154 | 20.585703 | 16.7 | 157.0 | SN | Young SN classified as a II or IIb |
| Q0957+561_A | 150.336216 | 55.898776 | 17.0 | 118.0 | QSO | firstly confirmed lensed quasar (double image), image A (top) |
| LSST_170094456334188639 | 149.218161 | 3.469923 | 17.0 | 147.0 | Unknown | LSST transient candidate with host 2MASX J09565234+0328119 |
| AT2026bti | 210.693421 | 24.826742 | 17.1 | 142.0 | Unknown | optical transient |
| 1ES 0502+675 | 76.984013 | 67.623396 | 17.5 | 84.0 | BL Lac | Blazar interesting in the context of search for intergalactic magnetic field |
| SN2025ahsa | 218.750883 | 0.986231 | 17.8 | 143.0 | Unknown | Supernova SN Ia |
| 3C 138 | 80.291192 | 16.639459 | 17.9 | 79.0 | QSO | Compact Steep Spectrum (CSS) type source currently flaring in Gamma-rays and optical |
| AT2026dmu | 224.692321 | 37.583406 | 17.9 | 125.0 | Unknown | Bowen Fluorescence Flare |
| name | ra | dec | mag_last | sun_separation | classification | description |
|---|---|---|---|---|---|---|
| GaiaDR3_4263591911398361472 | 289.926500 | -0.049900 | 8.4 | 72.0 | Variable star-other | This target is part of a paper about I am writing a revision for, and I would like to confirm if it is a binary system or not. It has a period of ~1.435 days (if a binary, ~2x1.435 days) |
| T Ori | 83.960201 | -5.476368 | 10.9 | 82.0 | YSO | Herbig AeBe star, YSO |
| HD 98800 | 170.521620 | -24.777768 | 10.9 | 154.0 | YSO | Pre-main sequence quadruple system (AaAb + BaBb) with circumbinary (BaBb) disk to eclipse AaAb |
| MXB0656-072 | 104.572033 | -7.209779 | 11.2 | 103.0 | XRB | Be X-ray binary |
| TCP J18265456-2719122 | 276.727333 | -27.320056 | 12.8 | 86.0 | Unknown | transient object |
| ngc 3783 | 174.757132 | -37.738611 | 13.6 | 143.0 | AGN | Nearby Seyfert 1 galaxy, active galactic nucleus, interesting for X-ray, high cadence data neeeded, potentially flaring |
| V4141 Sgr | 267.599257 | -19.895328 | 14.0 | 94.0 | Symbiotic star | symbiotic star |
| Nova Centauri 2025 | 219.340667 | -58.794667 | 14.1 | 115.0 | Nova | potential nova from ASASSN, V1935 Cen |
| AT2026ayt | 141.847458 | -32.008578 | 14.3 | 131.0 | Unknown | Optical transient, potential weird supernova |
| AT 2025nlr | 227.013640 | -40.141550 | 14.4 | 123.0 | Nova | Astro-COLIBRI target |
| V5856 Sgr | 275.217710 | -28.370030 | 14.4 | 88.0 | Nova | CV and Nova outburts |
| ASASSN-26af | 82.501958 | -66.724833 | 14.8 | 87.0 | Unknown | Undergoing Deep Dimming Events in the LMC |
| PKS0454-234 | 74.263250 | -23.414450 | 15.0 | 74.0 | QSO | long time monitoring for ROTUZ team |
| Nova Sagittarii 2025 no.4 | 270.969917 | -31.456667 | 15.0 | 91.0 | Nova | Nova Sgr 2025 No. 4 is TCP J18035290-3127298 is TCP J18035278-3127240 |
| AR Sco | 245.447013 | -22.886218 | 15.0 | 115.0 | CV | White Dwarf pulsar |
| TCP J05191540-0204515 | 79.814167 | -2.080972 | 15.2 | 78.0 | Unknown | T Tauri Star |
| ZTF20abendxc | 281.224708 | -8.538111 | 16.0 | 81.0 | YSO | Possibly eruptive YSO |
| ASASSN-25cd | 277.969917 | -28.807539 | 16.3 | 85.0 | Unknown | A Deep, Ongoing, Dipping Event |
| AT2025xvc | 85.526933 | -67.018517 | 16.3 | 88.0 | Unknown | possibile bright nova or CV in LMC from GOTO,TNS |
| Gaia19dbf | 178.699417 | -64.491850 | 16.6 | 116.0 | Unknown | Possibly a YSO |
| PMNJ0730-6602 | 112.706495 | -66.038578 | 17.0 | 99.0 | AGN | IAUZ Target |
| Gaia24csq | 286.710270 | -26.939590 | 17.0 | 77.0 | Unknown | potential slowly rising microlensing event |
| SN2026afe | 99.860204 | -21.822386 | 17.1 | 98.0 | Unknown | Type SN Ia-pec |
| Gaia24amo | 249.148921 | -53.749919 | 17.3 | 104.0 | Microlensing Event | candidate microlensing event, with the second peak |
| Gaia23cnm | 285.322920 | -18.717130 | 17.4 | 78.0 | Unknown | slow and long rise, possible microlensing or YSO |
Last week's total of images processed: 11819 (8767 with success).
Last week's targets observed:
| camera | target_names |
|---|---|
| Adonis_G2-1600 | Gaia24dja, SN 2026dix, AM_Her, LS I +61 302, TCrB |
| AndromedaC14_QHY600M | EECep, 1H2202+501 (BD+49 3718), 1H1936+541 (BD+53 2262), LS I +61 302, TCP J21220926+4926242, TCrB |
| BIALKOW_ANDOR-DW432 | LSST_170046089928376424 |
| EEye_QHY268M | AT2025acft, Q0957+561_A |
| HAO68_G2-1600 | LSST_170094456334188639, SN 2026dix, 8C0716_714, LS I +61 302, LSST_170094456357257301, AT2025abao |
| LCOGT-CTIO-1m_4K | LSST_170046089928376424, SN 2026Y, LSST_170032917163016282, AT2026ayt, AT2026mh, SN2026afe, Gaia24amo, LSST_313994139532263447, ASASSN-26af, Gaia20ehk |
| LCOGT-CTIO-40cm_QHY600M | AT2026ayt |
| LCOGT-HO-2m_Muscat | V518 Per, V1037Cas, V4641 Sgr, V1055 Ori, KV UMa |
| LCOGT-HO-40cm_QHY600M | GB6 J0742+5444, SN2025iek, PKS 1725+123, OJ287, SN 2025aico, TDE2025aeze |
| LCOGT-MCD-1m_4K | AT2026adv, AT2026mh, SN 2025aico, Gaia19axp, AT2025abao |
| LCOGT-MCD-40cm_QHY600M | PKS 1725+123, MXB0656-072, OJ287, AT2026abj, SN 2025aico, Gaia22efa, AT2026gz |
| LCOGT-SAAO-1m_4K | SN 2026Y, AT2026mh, AT2026ayt, SN2026afe, SN2026bdl, Gaia19exe, ASASSN-26af |
| LCOGT-SAAO-40cm_QHY600M | MXB0656-072, AT2025xvc, AT2026ayt |
| LCOGT-SS-1m_4K | SN 2026Y, AT2026mh, SN2026afe, AT2026ayt, SN2026bdl, ASASSN-26af, Gaia20ehk |
| LCOGT-SS-2m_Muscat | V1055 Ori, V4641 Sgr |
| LCOGT-SS-40cm_QHY600M | OJ287, AT2025xvc, EX Lup |
| LCOGT-Teide-1m_4K | AT2026adv, Gaia24aqv, SN 2025aico, TDE2025aljd, AT2026gz, AT2025abao |
| LCOGT-Teide-40cm_QHY600M | GB6 J0742+5444, SN2025iek, OJ287, SN 2025aico, AT2026abj, BL_Lac, TDE2025aeze, Gaia22efa, AT2025abao |
| Moravian_C3-61000_PRO | LSST_170046089928376424, SN 2026dix, TCP J21220926+4926242, TDE2025afsj, Gaia22efa, AT2025acft |
| OAUJ-CDK500_U47 | SN2024afyu, Gaia24azc, SN 2026dix, AT2026cex |
| Ostrowik-60-cm_SOFIA_E2V | SN 2025aico, 8C0716_714 |
| PROMPT-MO-1_Apogee | Gaia20agb, Gaia22alz |
| PROMPT2_FLI | AT2026ayt |
| PROMPT5_Apogee | AT2026ayt |
| R-COP_SBIG-ST-10XME | AT2026ayt |
| ROAD40_QHY600M | Gaia23dnm, EX Lup, HD 269582, V1787 Ori, HD 312919, HD 269858, HD 269840, TCrB, ASASSN-25bv, ASASSN-25db, V1117 Her, HD 269006, Gaia23cpd, HD 268687, Gaia17bpi, Gaia24dhn, ASASSN-24fw, TCP J18265456-2719122, ASASSN-21qj, ASASSN-21js, Gaia19eyy, OY Mon, V803Cen, Gaia24ccy, FU Ori, HD269110, S Dor, HD 98800 |
| ROADC14_QHY600M | ASASSN-26bl, TDE2025aarm, PNV J05271319-7009185, CD-43_14304, TCP J05191540-0204515, MASTER OT J142023.47-485540.0, ASASSN-25cy, 2MASS J07233213+0926393, V5856 Sgr, Nova Centauri 2025, ASASSN-25cg, Nova Velorum 2025, V1280 Sco, AR_Pav, AT 2025nlr, V4141 Sgr, V1413 Aql, Nova Sagittarii 2025 no.4 |
| RRRT_SBIG-STX16803 | AT2026cex |
| SOAB_ZWO-ASI2600MM | SN2025ahsa, 3C 138, Gaia22efa, TCP J21220926+4926242, TCrB, Mrk 817, Gaia24bux, Gaia16aoz, Gaia24dfc, AM_Her, Mrk 841, AT2025acft, AT2025sqe, EECep, ZTF18aarippg, AT2026bti, LS I +61 302, GaiaDR3_4263591911398361472, LSST_170094456334188639, SN 2026dix, AT2026dmu, SN 2025aico, AT 2025acve |
| SUTO-Otivar_ASI1600MM | TDE2025afsj, AT2026cex, IGRJ06074+2205, Gaia23bzg, TCrB, UX Ori, Gaia16aoz, 2MASS J07233213+0926393, 1RXS J160633.4-203636, TYC 168-784-1, 1ES 0502+675, RXJ0441.0+4431, HD 140122, SU Lyn, AT2026bti, ATO J223.4251+52.7158, ZGP-BLAP-01, 1H1936+541 (BD+53 2262), TabbysStar, FU Ori, AR UMa, TOI-1259Ab, NGC5683-Seyfert, Gaia18bwz, GAIA DR3 2207162600835525760, HD 98800 |
| Seestar-S30 | 8C0716_714, BL_Lac |
| Seestar-S50 | 8C0716_714, BL_Lac |
| TJO_MEIA3 | EECep, SN 2025aico, AT2024yqo, AM_Her, Gaia23dgf, AT2023uhx, LS I +61 302, Gaia24aup, ZTF25abhzbsq, TCrB |
| UwB_SBIG-4040 | GB6 J0742+5444, Gaia22efa, TCrB, Mrk 817, Gaia16aoz, OJ287, Gaia24dfc, AT2024kwu, AT2025acft, SDSS J101353.45+492758.1, ZTF18aarippg, AT2026bti, Gaia20cda, SN 2026dix, AT2026dmu, SN 2025aico, Q0957+561_A, Gaia23cqg, Gaia23dgt |
| ZAO_G2-1600 | SN 2025aico, AM_Her, LS I +61 302, OY Mon, TX Ori, TCrB |
Last week's fits uploads score (sorted by count)
| observatory-user | count |
|---|---|
| Franz-Josef Hambsch (ROADC14_QHY600M) | 5777 |
| Franz-Josef Hambsch (ROAD40_QHY600M) | 2889 |
| Franz-Josef Hambsch (AndromedaC14_QHY600M) | 405 |
| Michal Siwak (Moravian_C3-61000_PRO) | 349 |
| Sebastian Kurowski (SOAB_ZWO-ASI2600MM) | 301 |
| Charles Galdies (ZAO_G2-1600) | 290 |
| Adam Popowicz (SUTO-Otivar_ASI1600MM) | 268 |
| Lukasz Wyrzykowski (LCOGT-Teide-40cm_QHY600M) | 170 |
| Josep Manel Carrasco (TJO_MEIA3) | 157 |
| Staszek Zola (OAUJ-CDK500_U47) | 117 |
| Fraser Lewis (LCOGT-HO-2m_Muscat) | 104 |
| Lukasz Wyrzykowski (Ostrowik-60-cm_SOFIA_E2V) | 92 |
| Lukasz Wyrzykowski (LCOGT-Teide-1m_4K) | 80 |
| Lukasz Wyrzykowski (LCOGT-SS-40cm_QHY600M) | 78 |
| Ernest Glowacki (UwB_SBIG-4040) | 66 |
| Franky Dubois (Adonis_G2-1600) | 59 |
| Jacek Drazkowski (Seestar-S50) | 38 |
| Mikolaj Sabat (Seestar-S50) | 38 |
| Jan Kåre Trandem Qvam (HAO68_G2-1600) | 37 |
| Marcin Michalski (Seestar-S50) | 34 |
| Rachel Street (LCOGT-CTIO-1m_4K) | 33 |
| Lukasz Wyrzykowski (Seestar-S50) | 24 |
| Joysankar Majumdar (LCOGT-CTIO-1m_4K) | 23 |
| Joysankar Majumdar (LCOGT-Teide-40cm_QHY600M) | 21 |
| Krzysztof Słowik (Seestar-S50) | 20 |
| Lukasz Wyrzykowski (LCOGT-SAAO-40cm_QHY600M) | 20 |
| Staszek Zola (PROMPT-MO-1_Apogee) | 18 |
| Joysankar Majumdar (LCOGT-SAAO-1m_4K) | 18 |
| Joysankar Majumdar (LCOGT-Teide-1m_4K) | 16 |
| Fraser Lewis (LCOGT-SS-2m_Muscat) | 16 |
| Priscila Pessi (LCOGT-CTIO-1m_4K) | 15 |
| Priscila Pessi (LCOGT-Teide-40cm_QHY600M) | 15 |
| Priscila Pessi (LCOGT-Teide-1m_4K) | 15 |
| Joysankar Majumdar (LCOGT-HO-40cm_QHY600M) | 14 |
| Lukasz Wyrzykowski (LCOGT-MCD-1m_4K) | 13 |
| Joysankar Majumdar (LCOGT-SAAO-40cm_QHY600M) | 12 |
| Jerzy Surma (Seestar-S50) | 12 |
| Joysankar Majumdar (LCOGT-SS-1m_4K) | 12 |
| Lucyna Juchniewicz-Kusiak (Seestar-S50) | 12 |
| Joysankar Majumdar (LCOGT-CTIO-40cm_QHY600M) | 11 |
| Joysankar Majumdar (LCOGT-MCD-40cm_QHY600M) | 10 |
| Jakub Komar (Seestar-S30) | 10 |
| Lukasz Wyrzykowski (LCOGT-MCD-40cm_QHY600M) | 9 |
| Mauritz Wicker (LCOGT-CTIO-1m_4K) | 9 |
| Priscila Pessi (LCOGT-MCD-40cm_QHY600M) | 8 |
| Przemyslaw J. Mikolajczyk (BIALKOW_ANDOR-DW432) | 8 |
| Priscila Pessi (LCOGT-MCD-1m_4K) | 7 |
| Priscila Pessi (LCOGT-HO-40cm_QHY600M) | 7 |
| Staszek Zola (PROMPT5_Apogee) | 6 |
| Gabriel Malinowski (Seestar-S50) | 6 |
| Jacek Drazkowski (Seestar-S30) | 6 |
| Maria Nicewicz (Seestar-S50) | 6 |
| Rachel Street (LCOGT-SS-1m_4K) | 6 |
| Staszek Zola (PROMPT2_FLI) | 6 |
| Sjoerd Dufoer (EEye_QHY268M) | 5 |
| Lukasz Wyrzykowski (LCOGT-HO-40cm_QHY600M) | 5 |
| Priscila Pessi (LCOGT-SAAO-1m_4K) | 3 |
| Priscila Pessi (LCOGT-SS-1m_4K) | 3 |
| Joysankar Majumdar (LCOGT-MCD-1m_4K) | 3 |
| Staszek Zola (R-COP_SBIG-ST-10XME) | 2 |
| Staszek Zola (RRRT_SBIG-STX16803) | 2 |
| Fraser Lewis (LCOGT-SS-40cm_QHY600M) | 2 |
Top 5 data uploaders!
| name | count |
|---|---|
| Franz-Josef Hambsch | 9071 |
| Lukasz Wyrzykowski | 491 |
| Michal Siwak | 349 |
| Sebastian Kurowski | 301 |
| Charles Galdies | 290 |
Clear skies!
Your BHTOM Team
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