BHTOM Targets for 16 March, 2026
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wyrz...@gmail.com
Mar 16, 2026, 7:07:04 AM (yesterday) Mar 16
to bhtomt...@googlegroups.com
Hello,
Top 5 data uploaders!
Clear skies!
Your BHTOM Team
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Greetings from the BHTOM Automated Newsletter!
As of 2026-03-16 11:06:10.240652+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 |
|---|---|---|---|---|---|---|
| LSST_170094456334188639 | 149.218161 | 3.469923 | 17.4 | 154.0 | Unknown | LSST transient candidate with host 2MASX J09565234+0328119 |
| LSST_170094456400773135 | 149.635682 | 1.269346 | 18.2 | 154.0 | Unknown | LSST transient candidate rising |
| LSST_170068070008094735 | 53.525088 | -27.557878 | 19.4 | 61.0 | Unknown | LSST transient candidate rising |
| LSST_170094456357257301 | 150.032600 | 3.024183 | 20.7 | 154.0 | Unknown | LSST transient candidate |
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 |
|---|---|---|---|---|---|---|
| LS I +61 302 | 40.131935 | 61.229332 | 9.4 | 72.0 | Unknown | Be-star with unknown compact companion |
| RXJ0441.0+4431 | 70.247207 | 44.530349 | 10.5 | 80.0 | XRB | Be X-ray binary |
| 1H1936+541 (BD+53 2262) | 293.217949 | 53.879297 | 10.7 | 76.0 | XRB | optical counterpart of the Be X-Ray Binary |
| TCrB | 239.875676 | 25.920170 | 11.0 | 114.0 | Nova | recurent nova predicted to explode 2024/2025 |
| V1413 Aql | 285.945155 | 16.438048 | 12.0 | 71.0 | Symbiotic star | known symbiotic star for regular monitoring |
| IGRJ06074+2205 | 91.860884 | 22.096600 | 12.1 | 96.0 | XRB | Be X-ray binary |
| V1117 Her | 249.776779 | 9.798698 | 12.4 | 106.0 | Unknown | PMS star, Herbig Ae star |
| AM_Her | 274.055228 | 49.867989 | 12.5 | 86.0 | CV | Target for joint optical-radio observations |
| 8C0716_714 | 110.472701 | 71.343434 | 13.7 | 100.0 | QSO | checking of ~1.7-days periodic variability and quasi-periodic variability of ~24 days |
| Gaia22efa | 67.656210 | 35.842100 | 13.8 | 77.0 | YSO | Brightening in candidate YSO. After initial accretion burst the brightness started to rise slowly. |
| Mrk 817 | 219.092017 | 58.794299 | 13.9 | 114.0 | Unknown | Seyfert 1 AGN |
| Mrk 841 | 226.004963 | 10.437732 | 14.5 | 129.0 | AGN | changinglook AGN |
| SN 2026dix | 177.655950 | 55.353589 | 14.6 | 127.0 | Unknown | Closeby IIb supernova |
| NGC5683-Seyfert | 218.718578 | 48.661870 | 14.9 | 120.0 | AGN | active nucleus of a nearby galaxy for frequent monitoring |
| Gaia24ala | 86.808830 | 0.152040 | 16.3 | 91.0 | YSO | Dimming in candidate YSO |
| ZTF18aarippg | 217.566838 | 23.062372 | 16.4 | 134.0 | QSO | Tick-Tok possibly merging Super Massive Black Hole binary |
| 3C 138 | 80.291192 | 16.639459 | 16.4 | 85.0 | QSO | Compact Steep Spectrum (CSS) type source currently flaring in Gamma-rays and optical |
| SN 2025aico | 172.318154 | 20.585703 | 16.6 | 161.0 | SN | Young SN classified as a II or IIb |
| Gaia24dfc | 52.509900 | 61.429790 | 16.8 | 77.0 | Unknown | Brightening in candidate YSO |
| Gaia16aoz | 162.115140 | 71.726660 | 16.9 | 110.0 | QSO | QSO with a long-term and short-term variability |
| 1ES 0502+675 | 76.984013 | 67.623396 | 17.0 | 88.0 | BL Lac | Blazar interesting in the context of search for intergalactic magnetic field |
| Q0957+561_A | 150.336216 | 55.898776 | 17.0 | 122.0 | QSO | firstly confirmed lensed quasar (double image), image A (top) |
| AT2026bti | 210.693421 | 24.826742 | 17.2 | 139.0 | Unknown | optical transient |
| SN2025ahsa | 218.750883 | 0.986231 | 17.4 | 137.0 | Unknown | Supernova SN Ia |
| AT2025mau | 276.599034 | 10.235546 | 17.5 | 80.0 | Microlensing Event | Candidate long microlensing event from Chinese KATS survey, KATS25K015, almost gone |
| SDSSJ094533.99+100950.1 | 146.391622 | 10.163917 | 17.8 | 150.0 | QSO | Long term variable quasar for monitoring |
| name | ra | dec | mag_last | sun_separation | classification | description |
|---|---|---|---|---|---|---|
| HD 98800 | 170.521620 | -24.777768 | 7.5 | 153.0 | YSO | Pre-main sequence quadruple system (AaAb + BaBb) with circumbinary (BaBb) disk to eclipse AaAb |
| T Ori | 83.960201 | -5.476368 | 10.8 | 88.0 | YSO | Herbig AeBe star, YSO |
| MXB0656-072 | 104.572033 | -7.209779 | 11.3 | 109.0 | XRB | Be X-ray binary |
| TCP J18265456-2719122 | 276.727333 | -27.320056 | 12.6 | 79.0 | Unknown | transient object |
| V4141 Sgr | 267.599257 | -19.895328 | 13.0 | 88.0 | Symbiotic star | symbiotic star |
| V5856 Sgr | 275.217710 | -28.370030 | 14.0 | 81.0 | Nova | CV and Nova outburts |
| ngc 3783 | 174.757132 | -37.738611 | 14.0 | 140.0 | AGN | Nearby Seyfert 1 galaxy, active galactic nucleus, interesting for X-ray, high cadence data neeeded, potentially flaring |
| ASASSN-26aa | 219.340667 | -58.794667 | 14.3 | 110.0 | Unknown | potential nova from ASASSN |
| TCP J05191540-0204515 | 79.814167 | -2.080972 | 14.3 | 84.0 | Unknown | T Tauri Star |
| AT2026ayt | 141.847458 | -32.008578 | 14.4 | 133.0 | Unknown | Optical transient, potential weird supernova |
| AR Sco | 245.447013 | -22.886218 | 14.4 | 108.0 | CV | White Dwarf pulsar |
| TDE2025aarm | 68.051646 | -5.377697 | 14.6 | 72.0 | TDE | Nearby TDE from TNS |
| AT 2025nlr | 227.013640 | -40.141550 | 14.6 | 117.0 | Nova | Astro-COLIBRI target |
| ASASSN-26af | 82.501958 | -66.724833 | 14.9 | 87.0 | Unknown | Undergoing Deep Dimming Events in the LMC |
| Nova Sagittarii 2025 no.4 | 270.969917 | -31.456667 | 15.1 | 84.0 | Nova | Nova Sgr 2025 No. 4 is TCP J18035290-3127298 is TCP J18035278-3127240 |
| PKS0454-234 | 74.263250 | -23.414450 | 15.3 | 79.0 | QSO | long time monitoring for ROTUZ team |
| HE0413_4031 | 63.810269 | -40.394754 | 15.9 | 72.0 | QSO | Long term variable quasar for monitoring |
| ZTF20abendxc | 281.224708 | -8.538111 | 16.0 | 74.0 | YSO | Possibly eruptive YSO |
| ASASSN-25cd | 277.969917 | -28.807539 | 16.3 | 78.0 | 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 | 114.0 | Unknown | Possibly a YSO |
| AT 2025acve | 270.700667 | -5.976583 | 16.6 | 85.0 | Unknown | Unclassified optical transient discovered by XOSS, potential microlensing event |
| SN2026afe | 99.860204 | -21.822386 | 16.7 | 102.0 | Unknown | Type SN Ia-pec |
| Gaia24dhc | 271.324950 | -25.851100 | 16.7 | 84.0 | Unknown | ~0.2 mag rise in red Gaia source |
| Gaia24amo | 249.148921 | -53.749919 | 16.9 | 98.0 | Microlensing Event | candidate microlensing event, with the second peak |
| PMNJ0730-6602 | 112.706495 | -66.038578 | 17.0 | 99.0 | AGN | IAUZ Target |
| ASASSN-25fd | 187.851667 | -59.119028 | 17.2 | 118.0 | Nova | Nova in Crux, PNV J12312434-5907133 |
| Gaia23cnm | 285.322920 | -18.717130 | 17.5 | 71.0 | Unknown | slow and long rise, possible microlensing or YSO |
Last week's total of images processed: 7886 (7650 with success).
Last week's targets observed:
| camera | target_names |
|---|---|
| Adonis_G2-1600 | Gaia24azc, SN 2026dix, TCrB, AM_Her, Gaia24dfv, Gaia24ayd, LS I +61 302, Gaia24dja, TabbysStar |
| EEye_QHY268M | Q0957+561_A, AT2025acft |
| HAO68_G2-1600 | TCrB, AT2025acft, SN 2026dix |
| Kryoneri-1.2_Andor-Zyla | Q0957+561_A, Mrk 841, SN2025ahsa, TCrB, Gaia22efa, NGC5683-Seyfert, IGRJ06074+2205, ZTF18aarippg, 3C 138, SN2024afyu, 8C0716_714, Gaia23dgf, AT2026coj, SN 2025aico |
| LCOGT-CTIO-1m_4K | Gaia22adf, LSST_313994139532263447, AT2026cex, SN 2026Y, Gaia24amo, ZTF26aaezpck, AT2026ayt, LSST_170046089928376424 |
| LCOGT-CTIO-40cm_SBIG6303 | OJ_287 |
| LCOGT-HO-2m_Muscat | V518 Per |
| LCOGT-HO-2m_Spectral | V518 Per |
| LCOGT-MCD-1m_4K | AT2026bti, AT2024kwu, AT2025mau, AT2025sqe, AT2026cex, 3C 138, SN2024afyu, AT2025acft |
| LCOGT-SAAO-1m_4K | ASASSN-26af, LSST_313994139532263447, Gaia24amo, LSST_170032917163016282, AT2026ayt |
| LCOGT-SS-1m_4K | ASASSN-26af, Gaia22adf, AT2026cex, Gaia24amo, AT2026ayt, LSST_313761043604045880 |
| LCOGT-SS-2m_Muscat | GX 339-4 |
| LCOGT-Teide-1m_4K | AT2026bti, Gaia19axp, AT2024kwu, AT2025mau, AT2026cex, SN2024afyu, AT2025acft, AT2025abao, SN 2025aico |
| LCOGT-Teide-40cm_QHY600M | TCrB |
| Moravian_C3-61000_PRO | TCP J21220926+4926242, SN 2026dix, LSST_170032917163016282, AT2025acft, LSST_170046089928376424 |
| OAUJ-CDK500_U47 | Gaia24azc, Q0957+561_A, ASASSN-24fw, SN 2026dix, TCrB, EECep, AT2024kwu, AT2025mau, AT2026cex, AT2025acft, GROJ2058+42, AT2025abao |
| Ostrowik-60-cm_SOFIA_E2V | 8C0716_714, TOI-3757, LSST_170032917163016282, LSST_170046089928376424 |
| PROMPT-MO-1_Apogee | Gaia20agb, Gaia22alz |
| ROAD40_QHY600M | ASASSN-25db, Gaia23cpd, TX Ori, ASASSN-24fw, ASASSN-25bv, Gaia24ccy, Gaia19eyy, ASASSN-21js, Gaia24dhn, V1117 Her, OY Mon, T Ori, Gaia23dnm, ASASSN-21qj, TT Ori, UX Ori |
| ROADC14_QHY600M | V1413 Aql, V1280 Sco, MASTER OT J142023.47-485540.0, V4141 Sgr, V5856 Sgr, AT 2025nlr, ASASSN-25cy, AR_Pav |
| RRRT_SBIG-STX16803 | AT2026cex, EECep, AT2025acft |
| SOAB_ZWO-ASI2600MM | AT2026coj, 3C 138 |
| SUTO-Otivar_ASI1600MM | 1RXS J160633.4-203636, TYC 168-784-1, SU Lyn, TOI-1259Ab, TCrB, Gaia16aoz, FU Ori, ZGP-BLAP-01, IGRJ06074+2205, AR UMa, NGC5683-Seyfert, HD 98800 |
| Seestar-S50 | 8C0716_714, BL_Lac |
| Slooh-AU_FLI-KAF-16803 | ASASSN-25ff, SN2026afe, ASASSN-25fd, AT2026ayt, MXB0656-072, AT2026coj, HD 98800 |
| UZPW50_Chile_QHY268PRO | J050129.5-073309 |
| ZAO_G2-1600 | TCP J22135399+3015357 |
Last week's fits uploads score (sorted by count)
| observatory-user | count |
|---|---|
| Franz-Josef Hambsch (ROADC14_QHY600M) | 2950 |
| Franz-Josef Hambsch (ROAD40_QHY600M) | 1592 |
| Staszek Zola (OAUJ-CDK500_U47) | 1353 |
| Michal Siwak (Moravian_C3-61000_PRO) | 306 |
| Rachel Street (LCOGT-Teide-1m_4K) | 245 |
| Lukasz Wyrzykowski (Ostrowik-60-cm_SOFIA_E2V) | 189 |
| Konstantina Vrontaki (Kryoneri-1.2_Andor-Zyla) | 140 |
| Zbigniew Grabowski (Seestar-S50) | 98 |
| Adam Popowicz (SUTO-Otivar_ASI1600MM) | 88 |
| Rachel Street (LCOGT-CTIO-1m_4K) | 80 |
| Staszek Zola (RRRT_SBIG-STX16803) | 65 |
| Rachel Street (LCOGT-MCD-1m_4K) | 60 |
| Franky Dubois (Adonis_G2-1600) | 53 |
| Jacek Drazkowski (Seestar-S50) | 48 |
| Mauritz Wicker (LCOGT-CTIO-1m_4K) | 42 |
| Rachel Street (LCOGT-SS-1m_4K) | 40 |
| Lukasz Wyrzykowski (LCOGT-Teide-1m_4K) | 38 |
| Mauritz Wicker (LCOGT-SS-1m_4K) | 36 |
| Joysankar Majumdar (LCOGT-SAAO-1m_4K) | 32 |
| Nicholas Rattenbury (Slooh-AU_FLI-KAF-16803) | 28 |
| Yauheni Stsefanenka (OAUJ-CDK500_U47) | 27 |
| Marcin Michalski (Seestar-S50) | 26 |
| Mauritz Wicker (LCOGT-MCD-1m_4K) | 24 |
| Mauritz Wicker (LCOGT-Teide-1m_4K) | 24 |
| Krzysztof Słowik (Seestar-S50) | 22 |
| Patryk Matera (Seestar-S50) | 22 |
| Jan Kåre Trandem Qvam (HAO68_G2-1600) | 21 |
| Fraser Lewis (LCOGT-SS-2m_Muscat) | 18 |
| Joysankar Majumdar (LCOGT-Teide-1m_4K) | 18 |
| Joysankar Majumdar (LCOGT-SS-1m_4K) | 18 |
| Staszek Zola (PROMPT-MO-1_Apogee) | 18 |
| Mikolaj Sabat (Seestar-S50) | 16 |
| Sjoerd Dufoer (EEye_QHY268M) | 15 |
| Fraser Lewis (LCOGT-HO-2m_Spectral) | 15 |
| Mauritz Wicker (LCOGT-SAAO-1m_4K) | 15 |
| Lukasz Wyrzykowski (Seestar-S50) | 14 |
| Jerzy Surma (Seestar-S50) | 12 |
| Alicja Pucek (UZPW50_Chile_QHY268PRO) | 10 |
| Joysankar Majumdar (LCOGT-CTIO-1m_4K) | 10 |
| Joysankar Majumdar (LCOGT-MCD-1m_4K) | 9 |
| Sebastian Kurowski (SOAB_ZWO-ASI2600MM) | 7 |
| Priscila Pessi (LCOGT-CTIO-1m_4K) | 7 |
| Charles Galdies (ZAO_G2-1600) | 6 |
| Priscila Pessi (LCOGT-Teide-1m_4K) | 6 |
| Fraser Lewis (LCOGT-HO-2m_Muscat) | 5 |
| Priscila Pessi (LCOGT-MCD-1m_4K) | 5 |
| Lukasz Wyrzykowski (LCOGT-Teide-40cm_QHY600M) | 4 |
| Priscila Pessi (LCOGT-SAAO-1m_4K) | 4 |
| Priscila Pessi (LCOGT-SS-1m_4K) | 3 |
| Lukasz Wyrzykowski (LCOGT-CTIO-40cm_SBIG6303) | 2 |
Top 5 data uploaders!
| name | count |
|---|---|
| Franz-Josef Hambsch | 4542 |
| Staszek Zola | 1436 |
| Rachel Street | 425 |
| Michal Siwak | 306 |
| Lukasz Wyrzykowski | 247 |
Clear skies!
Your BHTOM Team
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